10122112120021 has 16 divisors (see below), whose sum is σ = 11623623163200. Its totient is φ = 8717499676800.

The previous prime is 10122112119989. The next prime is 10122112120091. The reversal of 10122112120021 is 12002121122101.

It is a cyclic number.

It is not a de Polignac number, because 10122112120021 - 2⁵ = 10122112119989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10122112119977 and 10122112120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122112120091) 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, 19604545 + ... + 20114233.

It is an arithmetic number, because the mean of its divisors is an integer number (726476447700).

Almost surely, 2^{10122112120021} is an apocalyptic number.

10122112120021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10122112120021 is a deficient number, since it is larger than the sum of its proper divisors (1501511043179).

10122112120021 is a wasteful number, since it uses less digits than its factorization.

10122112120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604740.

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

Adding to 10122112120021 its reverse (12002121122101), we get a palindrome (22124233242122).

The spelling of 10122112120021 in words is "ten trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty thousand, twenty-one".