111000211012121 has 32 divisors (see below), whose sum is σ = 117766615824000. Its totient is φ = 104328380063232.

The previous prime is 111000211012079. The next prime is 111000211012127. The reversal of 111000211012121 is 121210112000111.

It is a cyclic number.

It is not a de Polignac number, because 111000211012121 - 2³⁴ = 110983031142937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111000211012096 and 111000211012105.

It is not an unprimeable number, because it can be changed into a prime (111000211012127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9047203175 + ... + 9047215443.

It is an arithmetic number, because the mean of its divisors is an integer number (3680206744500).

Almost surely, 2^{111000211012121} is an apocalyptic number.

It is an amenable number.

111000211012121 is a deficient number, since it is larger than the sum of its proper divisors (6766404811879).

111000211012121 is a wasteful number, since it uses less digits than its factorization.

111000211012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16841.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111000211012121 its reverse (121210112000111), we get a palindrome (232210323012232).

The spelling of 111000211012121 in words is "one hundred eleven trillion, two hundred eleven million, twelve thousand, one hundred twenty-one".