2122211211210 has 56 divisors (see below), whose sum is σ = 5727350276100. Its totient is φ = 565922987712.

The previous prime is 2122211211193. The next prime is 2122211211223. The reversal of 2122211211210 is 121121122212.

2122211211210 is a `hidden beast` number, since 21 + 2 + 221 + 1 + 211 + 210 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1887142355289 + 235068855921 = 1373733^2 + 484839^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 145549035 + ... + 145563614.

Almost surely, 2^{2122211211210} is an apocalyptic number.

2122211211210 is an abundant number, since it is smaller than the sum of its proper divisors (3605139064890).

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

2122211211210 is an equidigital number, since it uses as much as digits as its factorization.

2122211211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291112674 (or 291112659 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2122211211210 its reverse (121121122212), we get a palindrome (2243332333422).

The spelling of 2122211211210 in words is "two trillion, one hundred twenty-two billion, two hundred eleven million, two hundred eleven thousand, two hundred ten".