120101102020 has 24 divisors (see below), whose sum is σ = 252229618368. Its totient is φ = 48037144800.

The previous prime is 120101101957. The next prime is 120101102021. The reversal of 120101102020 is 20201101021.

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 = 120101101988 and 120101102006.

It is not an unprimeable number, because it can be changed into a prime (120101102021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104185 + ... + 501055.

It is an arithmetic number, because the mean of its divisors is an integer number (10509567432).

Almost surely, 2^120101102020 is an apocalyptic number.

120101102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120101102020 is an abundant number, since it is smaller than the sum of its proper divisors (132128516348).

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

120101102020 is a wasteful number, since it uses less digits than its factorization.

120101102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412011 (or 412009 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 120101102020 its reverse (20201101021), we get a palindrome (140302203041).

Subtracting from 120101102020 its reverse (20201101021), we obtain a palindrome (99900000999).

The spelling of 120101102020 in words is "one hundred twenty billion, one hundred one million, one hundred two thousand, twenty".