222131021012 has 12 divisors (see below), whose sum is σ = 388732692180. Its totient is φ = 111064537536.

The previous prime is 222131021003. The next prime is 222131021029. The reversal of 222131021012 is 210120131222.

It can be written as a sum of positive squares in 2 ways, for example, as 105362563216 + 116768457796 = 324596^2 + 341714^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580064 + ... + 883592.

It is an arithmetic number, because the mean of its divisors is an integer number (32394391015).

Almost surely, 2^222131021012 is an apocalyptic number.

It is an amenable number.

222131021012 is a deficient number, since it is larger than the sum of its proper divisors (166601671168).

222131021012 is a wasteful number, since it uses less digits than its factorization.

222131021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486490 (or 486488 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 222131021012 its reverse (210120131222), we get a palindrome (432251152234).

The spelling of 222131021012 in words is "two hundred twenty-two billion, one hundred thirty-one million, twenty-one thousand, twelve".