1231223200122 has 64 divisors (see below), whose sum is σ = 2623973713920. Its totient is φ = 384401396736.

The previous prime is 1231223200019. The next prime is 1231223200127. The reversal of 1231223200122 is 2210023221321.

It is not an unprimeable number, because it can be changed into a prime (1231223200127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1885863 + ... + 2453349.

It is an arithmetic number, because the mean of its divisors is an integer number (40999589280).

Almost surely, 2^{1231223200122} is an apocalyptic number.

1231223200122 is an abundant number, since it is smaller than the sum of its proper divisors (1392750513798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231223200122 is a wasteful number, since it uses less digits than its factorization.

1231223200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567895.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1231223200122 its reverse (2210023221321), we get a palindrome (3441246421443).

The spelling of 1231223200122 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-three million, two hundred thousand, one hundred twenty-two".