1131031123222 has 64 divisors (see below), whose sum is σ = 2282093549568. Its totient is φ = 406012176000.

The previous prime is 1131031123213. The next prime is 1131031123273. The reversal of 1131031123222 is 2223211301311.

It is a super-2 number, since 2×1131031123222² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1131031123193 and 1131031123202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 560947 + ... + 1605217.

It is an arithmetic number, because the mean of its divisors is an integer number (35657711712).

Almost surely, 2^{1131031123222} is an apocalyptic number.

1131031123222 is an abundant number, since it is smaller than the sum of its proper divisors (1151062426346).

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

1131031123222 is a wasteful number, since it uses less digits than its factorization.

1131031123222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044845.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1131031123222 its reverse (2223211301311), we get a palindrome (3354242424533).

The spelling of 1131031123222 in words is "one trillion, one hundred thirty-one billion, thirty-one million, one hundred twenty-three thousand, two hundred twenty-two".