121002102220120 has 96 divisors (see below), whose sum is σ = 299261852310960. Its totient is φ = 43999786195200.

The previous prime is 121002102220117. The next prime is 121002102220169. The reversal of 121002102220120 is 21022201200121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121002102220094 and 121002102220103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238663690 + ... + 239170150.

Almost surely, 2^{121002102220120} is an apocalyptic number.

121002102220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002102220120 is an abundant number, since it is smaller than the sum of its proper divisors (178259750090840).

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

121002102220120 is a wasteful number, since it uses less digits than its factorization.

121002102220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555857 (or 555842 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121002102220120 its reverse (21022201200121), we get a palindrome (142024303420241).

The spelling of 121002102220120 in words is "one hundred twenty-one trillion, two billion, one hundred two million, two hundred twenty thousand, one hundred twenty".