22202213 has 4 divisors (see below), whose sum is σ = 24220608. Its totient is φ = 20183820.

The previous prime is 22202209. The next prime is 22202249. The reversal of 22202213 is 31220222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22202213 - 2² = 22202209 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 (22202263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009181 + ... + 1009202.

It is an arithmetic number, because the mean of its divisors is an integer number (6055152).

Almost surely, 2^22202213 is an apocalyptic number.

It is an amenable number.

22202213 is a deficient number, since it is larger than the sum of its proper divisors (2018395).

22202213 is a wasteful number, since it uses less digits than its factorization.

22202213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018394.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22202213 is about 4711.9224314498. The cubic root of 22202213 is about 281.0598142701.

Adding to 22202213 its reverse (31220222), we get a palindrome (53422435).

Subtracting 22202213 from its reverse (31220222), we obtain a square (9018009 = 3003²).

The spelling of 22202213 in words is "twenty-two million, two hundred two thousand, two hundred thirteen".