1222045463 has 4 divisors (see below), whose sum is σ = 1223387808. Its totient is φ = 1220703120.

The previous prime is 1222045417. The next prime is 1222045507. The reversal of 1222045463 is 3645402221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3645402221 = 877 ⋅4156673.

It is a cyclic number.

It is not a de Polignac number, because 1222045463 - 2¹⁴ = 1222029079 is a prime.

It is a super-2 number, since 2×1222045463² = 2986790227277768738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222045163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669806 + ... + 671627.

It is an arithmetic number, because the mean of its divisors is an integer number (305846952).

Almost surely, 2^1222045463 is an apocalyptic number.

1222045463 is a deficient number, since it is larger than the sum of its proper divisors (1342345).

1222045463 is an equidigital number, since it uses as much as digits as its factorization.

1222045463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342344.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 1222045463 is about 34957.7668480125. The cubic root of 1222045463 is about 1069.1265655798.

Adding to 1222045463 its reverse (3645402221), we get a palindrome (4867447684).

The spelling of 1222045463 in words is "one billion, two hundred twenty-two million, forty-five thousand, four hundred sixty-three".