121112112020112 has 60 divisors (see below), whose sum is σ = 358883684890380. Its totient is φ = 37995956711424.

The previous prime is 121112112020089. The next prime is 121112112020143. The reversal of 121112112020112 is 211020211211121.

It is a happy number.

121112112020112 is a `hidden beast` number, since 1 + 211 + 121 + 120 + 201 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66833175624336 + 54278936395776 = 8175156^2 + 7367424^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24736948537 + ... + 24736953432.

It is an arithmetic number, because the mean of its divisors is an integer number (5981394748173).

Almost surely, 2^{121112112020112} is an apocalyptic number.

121112112020112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121112112020112 is an abundant number, since it is smaller than the sum of its proper divisors (237771572870268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121112112020112 is a wasteful number, since it uses less digits than its factorization.

121112112020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49473902000 (or 49473901991 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121112112020112 its reverse (211020211211121), we get a palindrome (332132323231233).

The spelling of 121112112020112 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred twelve million, twenty thousand, one hundred twelve".