222131023121 has 32 divisors (see below), whose sum is σ = 263100085248. Its totient is φ = 183588068160.

The previous prime is 222131023111. The next prime is 222131023123. The reversal of 222131023121 is 121320131222.

It is not a de Polignac number, because 222131023121 - 2³⁰ = 221057281297 is a prime.

It is a super-3 number, since 3×222131023121³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222131023093 and 222131023102.

It is not an unprimeable number, because it can be changed into a prime (222131023123) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 43492850 + ... + 43497956.

It is an arithmetic number, because the mean of its divisors is an integer number (8221877664).

Almost surely, 2^222131023121 is an apocalyptic number.

It is an amenable number.

222131023121 is a deficient number, since it is larger than the sum of its proper divisors (40969062127).

222131023121 is a wasteful number, since it uses less digits than its factorization.

222131023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 222131023121 its reverse (121320131222), we get a palindrome (343451154343).

The spelling of 222131023121 in words is "two hundred twenty-two billion, one hundred thirty-one million, twenty-three thousand, one hundred twenty-one".