2122212012210 has 48 divisors (see below), whose sum is σ = 5532310031040. Its totient is φ = 564429993120.

The previous prime is 2122212012181. The next prime is 2122212012329. The reversal of 2122212012210 is 122102122212.

It is a happy number.

2122212012210 is a `hidden beast` number, since 21 + 2 + 221 + 201 + 221 + 0 = 666.

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 23 ways as a sum of consecutive naturals, for example, 31074246 + ... + 31142465.

It is an arithmetic number, because the mean of its divisors is an integer number (115256458980).

Almost surely, 2^{2122212012210} is an apocalyptic number.

2122212012210 is an abundant number, since it is smaller than the sum of its proper divisors (3410098018830).

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

2122212012210 is a wasteful number, since it uses less digits than its factorization.

2122212012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62217103 (or 62217100 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2122212012210 its reverse (122102122212), we get a palindrome (2244314134422).

The spelling of 2122212012210 in words is "two trillion, one hundred twenty-two billion, two hundred twelve million, twelve thousand, two hundred ten".