2212220453 has 4 divisors (see below), whose sum is σ = 2212794348. Its totient is φ = 2211646560.

The previous prime is 2212220447. The next prime is 2212220467. The reversal of 2212220453 is 3540222122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3540222122 = 2 ⋅1770111061.

It can be written as a sum of positive squares in 2 ways, for example, as 1011112804 + 1201107649 = 31798^2 + 34657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212220453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212228453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281126 + ... + 288887.

It is an arithmetic number, because the mean of its divisors is an integer number (553198587).

Almost surely, 2^2212220453 is an apocalyptic number.

It is an amenable number.

2212220453 is a deficient number, since it is larger than the sum of its proper divisors (573895).

2212220453 is an equidigital number, since it uses as much as digits as its factorization.

2212220453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573894.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2212220453 is about 47034.2476606143. The cubic root of 2212220453 is about 1302.9951556993.

Adding to 2212220453 its reverse (3540222122), we get a palindrome (5752442575).

The spelling of 2212220453 in words is "two billion, two hundred twelve million, two hundred twenty thousand, four hundred fifty-three".