2102122102220 has 96 divisors (see below), whose sum is σ = 5541521126400. Its totient is φ = 653107809024.

The previous prime is 2102122102181. The next prime is 2102122102237. The reversal of 2102122102220 is 222012212012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17118635 + ... + 17240994.

It is an arithmetic number, because the mean of its divisors is an integer number (57724178400).

Almost surely, 2^{2102122102220} is an apocalyptic number.

2102122102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102122102220 is an abundant number, since it is smaller than the sum of its proper divisors (3439399024180).

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

2102122102220 is a wasteful number, since it uses less digits than its factorization.

2102122102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34359687 (or 34359685 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2102122102220 its reverse (222012212012), we get a palindrome (2324134314232).

The spelling of 2102122102220 in words is "two trillion, one hundred two billion, one hundred twenty-two million, one hundred two thousand, two hundred twenty".