22130331012 has 18 divisors (see below), whose sum is σ = 55940559038. Its totient is φ = 7376776992.

The previous prime is 22130331001. The next prime is 22130331059. The reversal of 22130331012 is 21013303122.

It can be written as a sum of positive squares in only one way, i.e., 13210284096 + 8920046916 = 114936^2 + 94446^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 307365673 + ... + 307365744.

Almost surely, 2^22130331012 is an apocalyptic number.

It is an amenable number.

22130331012 is an abundant number, since it is smaller than the sum of its proper divisors (33810228026).

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

22130331012 is a wasteful number, since it uses less digits than its factorization.

22130331012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614731427 (or 614731422 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 22130331012 its reverse (21013303122), we get a palindrome (43143634134).

The spelling of 22130331012 in words is "twenty-two billion, one hundred thirty million, three hundred thirty-one thousand, twelve".