2101121011210 has 32 divisors (see below), whose sum is σ = 4087334361600. Its totient is φ = 773057176128.

The previous prime is 2101121011193. The next prime is 2101121011279. The reversal of 2101121011210 is 121101211012.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 28518810 + ... + 28592389.

It is an arithmetic number, because the mean of its divisors is an integer number (127729198800).

Almost surely, 2^{2101121011210} is an apocalyptic number.

2101121011210 is a deficient number, since it is larger than the sum of its proper divisors (1986213350390).

2101121011210 is a wasteful number, since it uses less digits than its factorization.

2101121011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57111502.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2101121011210 its reverse (121101211012), we get a palindrome (2222222222222).

The spelling of 2101121011210 in words is "two trillion, one hundred one billion, one hundred twenty-one million, eleven thousand, two hundred ten".