2231210121210 has 96 divisors (see below), whose sum is σ = 6784064876160. Its totient is φ = 498130625664.

The previous prime is 2231210121197. The next prime is 2231210121221. The reversal of 2231210121210 is 121210121322.

2231210121210 is a `hidden beast` number, since 2 + 231 + 210 + 1 + 212 + 10 = 666.

It is a super-3 number, since 3×2231210121210³ (a number of 38 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41154345 + ... + 41208524.

It is an arithmetic number, because the mean of its divisors is an integer number (70667342460).

Almost surely, 2^{2231210121210} is an apocalyptic number.

2231210121210 is an abundant number, since it is smaller than the sum of its proper divisors (4552854754950).

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

2231210121210 is a wasteful number, since it uses less digits than its factorization.

2231210121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82362932 (or 82362929 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2231210121210 its reverse (121210121322), we get a palindrome (2352420242532).

The spelling of 2231210121210 in words is "two trillion, two hundred thirty-one billion, two hundred ten million, one hundred twenty-one thousand, two hundred ten".