121201022012112 has 120 divisors (see below), whose sum is σ = 387698849006976. Its totient is φ = 34624579062528.

The previous prime is 121201022012111. The next prime is 121201022012113. The reversal of 121201022012112 is 211210220102121.

121201022012112 is a `hidden beast` number, since 121 + 201 + 0 + 220 + 12 + 112 = 666.

It is an interprime number because it is at equal distance from previous prime (121201022012111) and next prime (121201022012113).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201022012111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 717598 + ... + 15585794.

Almost surely, 2^{121201022012112} is an apocalyptic number.

121201022012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121201022012112 is an abundant number, since it is smaller than the sum of its proper divisors (266497826994864).

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

121201022012112 is a wasteful number, since it uses less digits than its factorization.

121201022012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14876305 (or 14876296 counting only the distinct ones).

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

Adding to 121201022012112 its reverse (211210220102121), we get a palindrome (332411242114233).

The spelling of 121201022012112 in words is "one hundred twenty-one trillion, two hundred one billion, twenty-two million, twelve thousand, one hundred twelve".