120121021012020 has 192 divisors, whose sum is σ = 384705201323520. Its totient is φ = 27433533431808.

The previous prime is 120121021011941. The next prime is 120121021012087. The reversal of 120121021012020 is 20210120121021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2664773722 + ... + 2664818798.

It is an arithmetic number, because the mean of its divisors is an integer number (2003672923560).

Almost surely, 2^{120121021012020} is an apocalyptic number.

120121021012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121021012020 is an abundant number, since it is smaller than the sum of its proper divisors (264584180311500).

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

120121021012020 is a wasteful number, since it uses less digits than its factorization.

120121021012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50202 (or 50200 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120121021012020 its reverse (20210120121021), we get a palindrome (140331141133041).

The spelling of 120121021012020 in words is "one hundred twenty trillion, one hundred twenty-one billion, twenty-one million, twelve thousand, twenty".