121110120211212 has 36 divisors (see below), whose sum is σ = 333970331492616. Its totient is φ = 36700036427520.

The previous prime is 121110120211193. The next prime is 121110120211259. The reversal of 121110120211212 is 212112021011121.

It is a happy number.

121110120211212 is a `hidden beast` number, since 1 + 211 + 10 + 1 + 20 + 211 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×121110120211212² (a number of 29 digits) contains 22 as substring.

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, 152916818053 + ... + 152916818844.

Almost surely, 2^{121110120211212} is an apocalyptic number.

121110120211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121110120211212 is an abundant number, since it is smaller than the sum of its proper divisors (212860211281404).

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

121110120211212 is a wasteful number, since it uses less digits than its factorization.

121110120211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305833636918 (or 305833636913 counting only the distinct ones).

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

Adding to 121110120211212 its reverse (212112021011121), we get a palindrome (333222141222333).

The spelling of 121110120211212 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred twenty million, two hundred eleven thousand, two hundred twelve".