2122220022210 has 96 divisors (see below), whose sum is σ = 5577161007600. Its totient is φ = 559839412224.

The previous prime is 2122220022203. The next prime is 2122220022211. The reversal of 2122220022210 is 122200222212.

2122220022210 is a `hidden beast` number, since 21 + 222 + 200 + 2 + 221 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1377076433121 + 745143589089 = 1173489^2 + 863217^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2122220022211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19789816 + ... + 19896764.

Almost surely, 2^{2122220022210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122220022210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2788580503800).

2122220022210 is an abundant number, since it is smaller than the sum of its proper divisors (3454940985390).

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

2122220022210 is a wasteful number, since it uses less digits than its factorization.

2122220022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109332 (or 109329 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2122220022210 its reverse (122200222212), we get a palindrome (2244420244422).

The spelling of 2122220022210 in words is "two trillion, one hundred twenty-two billion, two hundred twenty million, twenty-two thousand, two hundred ten".