2101121011010 has 32 divisors (see below), whose sum is σ = 4322383499520. Its totient is φ = 720371443392.

The previous prime is 2101121011009. The next prime is 2101121011021. The reversal of 2101121011010 is 101101211012.

It is a junction number, because it is equal to n+sod(n) for n = 2101121010982 and 2101121011000.

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, 4192211 + ... + 4666569.

It is an arithmetic number, because the mean of its divisors is an integer number (135074484360).

Almost surely, 2^{2101121011010} is an apocalyptic number.

2101121011010 is an abundant number, since it is smaller than the sum of its proper divisors (2221262488510).

2101121011010 is a wasteful number, since it uses less digits than its factorization.

2101121011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537650.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2101121011010 its reverse (101101211012), we get a palindrome (2202222222022).

The spelling of 2101121011010 in words is "two trillion, one hundred one billion, one hundred twenty-one million, eleven thousand, ten".