121010122010020 has 24 divisors (see below), whose sum is σ = 255451734010368. Its totient is φ = 48150624463200.

The previous prime is 121010122009969. The next prime is 121010122010059. The reversal of 121010122010020 is 20010221010121.

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, 15839017386 + ... + 15839025025.

It is an arithmetic number, because the mean of its divisors is an integer number (10643822250432).

Almost surely, 2^{121010122010020} is an apocalyptic number.

121010122010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121010122010020 is an abundant number, since it is smaller than the sum of its proper divisors (134441612000348).

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

121010122010020 is a wasteful number, since it uses less digits than its factorization.

121010122010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31678042611 (or 31678042609 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121010122010020 its reverse (20010221010121), we get a palindrome (141020343020141).

The spelling of 121010122010020 in words is "one hundred twenty-one trillion, ten billion, one hundred twenty-two million, ten thousand, twenty".