10122112091 has 16 divisors (see below), whose sum is σ = 12693046464. Its totient is φ = 7857592704.

The previous prime is 10122111991. The next prime is 10122112109. The reversal of 10122112091 is 19021122101.

It is not a de Polignac number, because 10122112091 - 2²⁶ = 10055003227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10122117091) 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, 1044536 + ... + 1054181.

It is an arithmetic number, because the mean of its divisors is an integer number (793315404).

Almost surely, 2^10122112091 is an apocalyptic number.

10122112091 is a deficient number, since it is larger than the sum of its proper divisors (2570934373).

10122112091 is a wasteful number, since it uses less digits than its factorization.

10122112091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098790.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 10122112091 its reverse (19021122101), we get a palindrome (29143234192).

The spelling of 10122112091 in words is "ten billion, one hundred twenty-two million, one hundred twelve thousand, ninety-one".