1231112133222 has 16 divisors (see below), whose sum is σ = 2489889708720. Its totient is φ = 405759804032.

The previous prime is 1231112133203. The next prime is 1231112133269. The reversal of 1231112133222 is 2223312111321.

It is a super-2 number, since 2×1231112133222² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1231112133192 and 1231112133201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1152726183 + ... + 1152727250.

It is an arithmetic number, because the mean of its divisors is an integer number (155618106795).

Almost surely, 2^{1231112133222} is an apocalyptic number.

1231112133222 is an abundant number, since it is smaller than the sum of its proper divisors (1258777575498).

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

1231112133222 is a wasteful number, since it uses less digits than its factorization.

1231112133222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305453527.

The product of its digits is 864, while the sum is 24.

Adding to 1231112133222 its reverse (2223312111321), we get a palindrome (3454424244543).

The spelling of 1231112133222 in words is "one trillion, two hundred thirty-one billion, one hundred twelve million, one hundred thirty-three thousand, two hundred twenty-two".