111012200121 has 32 divisors (see below), whose sum is σ = 153990200448. Its totient is φ = 71074713600.

The previous prime is 111012200063. The next prime is 111012200141. The reversal of 111012200121 is 121002210111.

It is not a de Polignac number, because 111012200121 - 2⁹ = 111012199609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111012200097 and 111012200106.

It is not an unprimeable number, because it can be changed into a prime (111012200141) 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, 11207271 + ... + 11217171.

It is an arithmetic number, because the mean of its divisors is an integer number (4812193764).

Almost surely, 2^111012200121 is an apocalyptic number.

It is an amenable number.

111012200121 is a deficient number, since it is larger than the sum of its proper divisors (42978000327).

111012200121 is a wasteful number, since it uses less digits than its factorization.

111012200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11241.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111012200121 its reverse (121002210111), we get a palindrome (232014410232).

The spelling of 111012200121 in words is "one hundred eleven billion, twelve million, two hundred thousand, one hundred twenty-one".