100000000122111 has 12 divisors (see below), whose sum is σ = 148348348529992. Its totient is φ = 64864864943856.

The previous prime is 100000000122031. The next prime is 100000000122131. The reversal of 100000000122111 is 111221000000001.

It is a happy number.

It is not a de Polignac number, because 100000000122111 - 2²¹ = 99999998024959 is a prime.

It is a super-2 number, since 2×100000000122111² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100000000122093 and 100000000122102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000000122131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150150150001 + ... + 150150150666.

Almost surely, 2^{100000000122111} is an apocalyptic number.

100000000122111 is a deficient number, since it is larger than the sum of its proper divisors (48348348407881).

100000000122111 is a wasteful number, since it uses less digits than its factorization.

100000000122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300300300710 (or 300300300707 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100000000122111 its reverse (111221000000001), we get a palindrome (211221000122112).

The spelling of 100000000122111 in words is "one hundred trillion, one hundred twenty-two thousand, one hundred eleven".