121202220110112 has 72 divisors (see below), whose sum is σ = 344802459914640. Its totient is φ = 40385074515840.

The previous prime is 121202220110093. The next prime is 121202220110113. The reversal of 121202220110112 is 211011022202121.

121202220110112 is a `hidden beast` number, since 1 + 21 + 202 + 220 + 110 + 112 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is not an unprimeable number, because it can be changed into a prime (121202220110113) 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, 80847214 + ... + 82332717.

It is an arithmetic number, because the mean of its divisors is an integer number (4788923054370).

Almost surely, 2^{121202220110112} is an apocalyptic number.

121202220110112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121202220110112 is an abundant number, since it is smaller than the sum of its proper divisors (223600239804528).

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

121202220110112 is a wasteful number, since it uses less digits than its factorization.

121202220110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163182526 (or 163182515 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121202220110112 its reverse (211011022202121), we get a palindrome (332213242312233).

The spelling of 121202220110112 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred twenty million, one hundred ten thousand, one hundred twelve".