2101022112121 has 16 divisors (see below), whose sum is σ = 2185964625600. Its totient is φ = 2016916148800.

The previous prime is 2101022112073. The next prime is 2101022112131. The reversal of 2101022112121 is 1212112201012.

It is a cyclic number.

It is not a de Polignac number, because 2101022112121 - 2¹⁵ = 2101022079353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101022112095 and 2101022112104.

It is not an unprimeable number, because it can be changed into a prime (2101022112131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36157431 + ... + 36215491.

It is an arithmetic number, because the mean of its divisors is an integer number (136622789100).

Almost surely, 2^{2101022112121} is an apocalyptic number.

It is an amenable number.

2101022112121 is a deficient number, since it is larger than the sum of its proper divisors (84942513479).

2101022112121 is a wasteful number, since it uses less digits than its factorization.

2101022112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65240.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2101022112121 its reverse (1212112201012), we get a palindrome (3313134313133).

The spelling of 2101022112121 in words is "two trillion, one hundred one billion, twenty-two million, one hundred twelve thousand, one hundred twenty-one".