1231223122 has 8 divisors (see below), whose sum is σ = 1851583500. Its totient is φ = 614028624.

The previous prime is 1231223117. The next prime is 1231223177. The reversal of 1231223122 is 2213221321.

It can be written as a sum of positive squares in 2 ways, for example, as 1175735521 + 55487601 = 34289^2 + 7449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1231223122² = 3031820752294853768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231223122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790497 + ... + 792052.

Almost surely, 2^1231223122 is an apocalyptic number.

1231223122 is a deficient number, since it is larger than the sum of its proper divisors (620360378).

1231223122 is a wasteful number, since it uses less digits than its factorization.

1231223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582940.

The product of its digits is 288, while the sum is 19.

The square root of 1231223122 is about 35088.7891213134. The cubic root of 1231223122 is about 1071.7963020043.

Adding to 1231223122 its reverse (2213221321), we get a palindrome (3444444443).

The spelling of 1231223122 in words is "one billion, two hundred thirty-one million, two hundred twenty-three thousand, one hundred twenty-two".