1231112102210 has 32 divisors (see below), whose sum is σ = 2259134673984. Its totient is φ = 482908536000.

The previous prime is 1231112102173. The next prime is 1231112102221. The reversal of 1231112102210 is 122012111321.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2846756 + ... + 3250575.

It is an arithmetic number, because the mean of its divisors is an integer number (70597958562).

Almost surely, 2^{1231112102210} is an apocalyptic number.

1231112102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231112102210 is a deficient number, since it is larger than the sum of its proper divisors (1028022571774).

1231112102210 is a wasteful number, since it uses less digits than its factorization.

1231112102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6097730.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1231112102210 its reverse (122012111321), we get a palindrome (1353124213531).

The spelling of 1231112102210 in words is "one trillion, two hundred thirty-one billion, one hundred twelve million, one hundred two thousand, two hundred ten".