121122011020 has 24 divisors (see below), whose sum is σ = 254385072144. Its totient is φ = 48443309376.

The previous prime is 121122010969. The next prime is 121122011033. The reversal of 121122011020 is 20110221121.

121122011020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 160314 + ... + 517633.

It is an arithmetic number, because the mean of its divisors is an integer number (10599378006).

Almost surely, 2^121122011020 is an apocalyptic number.

121122011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121122011020 is an abundant number, since it is smaller than the sum of its proper divisors (133263061124).

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

121122011020 is a wasteful number, since it uses less digits than its factorization.

121122011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686889 (or 686887 counting only the distinct ones).

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

Adding to 121122011020 its reverse (20110221121), we get a palindrome (141232232141).

The spelling of 121122011020 in words is "one hundred twenty-one billion, one hundred twenty-two million, eleven thousand, twenty".