121020222100120 has 64 divisors (see below), whose sum is σ = 312294485502720. Its totient is φ = 41346030420864.

The previous prime is 121020222100117. The next prime is 121020222100139. The reversal of 121020222100120 is 21001222020121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121020222100094 and 121020222100103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763551642 + ... + 763710121.

It is an arithmetic number, because the mean of its divisors is an integer number (4879601335980).

Almost surely, 2^{121020222100120} is an apocalyptic number.

121020222100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020222100120 is an abundant number, since it is smaller than the sum of its proper divisors (191274263402600).

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

121020222100120 is a wasteful number, since it uses less digits than its factorization.

121020222100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527262064 (or 1527262060 counting only the distinct ones).

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

Adding to 121020222100120 its reverse (21001222020121), we get a palindrome (142021444120241).

The spelling of 121020222100120 in words is "one hundred twenty-one trillion, twenty billion, two hundred twenty-two million, one hundred thousand, one hundred twenty".