222131221212110 has 64 divisors (see below), whose sum is σ = 478986983000064. Its totient is φ = 72573785222400.

The previous prime is 222131221212049. The next prime is 222131221212113. The reversal of 222131221212110 is 11212122131222.

It is a super-2 number, since 2×222131221212110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222131221212113) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 899849126 + ... + 900095945.

It is an arithmetic number, because the mean of its divisors is an integer number (7484171609376).

Almost surely, 2^{222131221212110} is an apocalyptic number.

222131221212110 is an abundant number, since it is smaller than the sum of its proper divisors (256855761787954).

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

222131221212110 is a wasteful number, since it uses less digits than its factorization.

222131221212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799945169.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 222131221212110 its reverse (11212122131222), we get a palindrome (233343343343332).

The spelling of 222131221212110 in words is "two hundred twenty-two trillion, one hundred thirty-one billion, two hundred twenty-one million, two hundred twelve thousand, one hundred ten".