1222023213 has 8 divisors (see below), whose sum is σ = 1810404800. Its totient is φ = 814682124.

The previous prime is 1222023181. The next prime is 1222023221. The reversal of 1222023213 is 3123202221.

It is not a de Polignac number, because 1222023213 - 2⁵ = 1222023181 is a prime.

It is a super-2 number, since 2×1222023213² = 2986681466221686738, 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 (1222023613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22630033 + ... + 22630086.

It is an arithmetic number, because the mean of its divisors is an integer number (226300600).

Almost surely, 2^1222023213 is an apocalyptic number.

It is an amenable number.

1222023213 is a deficient number, since it is larger than the sum of its proper divisors (588381587).

1222023213 is an equidigital number, since it uses as much as digits as its factorization.

1222023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45260128 (or 45260122 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1222023213 is about 34957.4486054117. The cubic root of 1222023213 is about 1069.1200769476.

Adding to 1222023213 its reverse (3123202221), we get a palindrome (4345225434).

The spelling of 1222023213 in words is "one billion, two hundred twenty-two million, twenty-three thousand, two hundred thirteen".