120101101010020 has 24 divisors (see below), whose sum is σ = 271613259207864. Its totient is φ = 44345021911296.

The previous prime is 120101101010017. The next prime is 120101101010117. The reversal of 120101101010020 is 20010101101021.

It can be written as a sum of positive squares in 4 ways, for example, as 192598884 + 120100908411136 = 13878^2 + 10959056^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 120101101009979 and 120101101010006.

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, 230963655529 + ... + 230963656048.

It is an arithmetic number, because the mean of its divisors is an integer number (11317219133661).

Almost surely, 2^{120101101010020} is an apocalyptic number.

120101101010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120101101010020 is an abundant number, since it is smaller than the sum of its proper divisors (151512158197844).

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

120101101010020 is a wasteful number, since it uses less digits than its factorization.

120101101010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461927311599 (or 461927311597 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 120101101010020 its reverse (20010101101021), we get a palindrome (140111202111041).

The spelling of 120101101010020 in words is "one hundred twenty trillion, one hundred one billion, one hundred one million, ten thousand, twenty".