121002021122120 has 64 divisors (see below), whose sum is σ = 303441600988800. Its totient is φ = 43156138798080.

The previous prime is 121002021122117. The next prime is 121002021122153. The reversal of 121002021122120 is 21221120200121.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4682727836 + ... + 4682753675.

It is an arithmetic number, because the mean of its divisors is an integer number (4741275015450).

Almost surely, 2^{121002021122120} is an apocalyptic number.

121002021122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002021122120 is an abundant number, since it is smaller than the sum of its proper divisors (182439579866680).

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

121002021122120 is a wasteful number, since it uses less digits than its factorization.

121002021122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9365481558 (or 9365481554 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121002021122120 its reverse (21221120200121), we get a palindrome (142223141322241).

The spelling of 121002021122120 in words is "one hundred twenty-one trillion, two billion, twenty-one million, one hundred twenty-two thousand, one hundred twenty".