2101120122010 has 48 divisors (see below), whose sum is σ = 4737910443336. Its totient is φ = 664969882752.

The previous prime is 2101120121927. The next prime is 2101120122047. The reversal of 2101120122010 is 102210211012.

It can be written as a sum of positive squares in 4 ways, for example, as 1285622625609 + 815497496401 = 1133853^2 + 903049^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 164916717 + ... + 164929456.

Almost surely, 2^{2101120122010} is an apocalyptic number.

2101120122010 is an abundant number, since it is smaller than the sum of its proper divisors (2636790321326).

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

2101120122010 is a wasteful number, since it uses less digits than its factorization.

2101120122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329846207 (or 329846200 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2101120122010 its reverse (102210211012), we get a palindrome (2203330333022).

The spelling of 2101120122010 in words is "two trillion, one hundred one billion, one hundred twenty million, one hundred twenty-two thousand, ten".