121020002120120 has 32 divisors (see below), whose sum is σ = 276359109325200. Its totient is φ = 47685493371648.

The previous prime is 121020002120111. The next prime is 121020002120161. The reversal of 121020002120120 is 21021200020121.

It is a junction number, because it is equal to n+sod(n) for n = 121020002120095 and 121020002120104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22578355925 + ... + 22578361284.

Almost surely, 2^{121020002120120} is an apocalyptic number.

121020002120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020002120120 is an abundant number, since it is smaller than the sum of its proper divisors (155339107205080).

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

121020002120120 is a wasteful number, since it uses less digits than its factorization.

121020002120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45156717287 (or 45156717283 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121020002120120 its reverse (21021200020121), we get a palindrome (142041202140241).

The spelling of 121020002120120 in words is "one hundred twenty-one trillion, twenty billion, two million, one hundred twenty thousand, one hundred twenty".