120101012020 has 48 divisors (see below), whose sum is σ = 277307025408. Its totient is φ = 43329202560.

The previous prime is 120101011981. The next prime is 120101012027. The reversal of 120101012020 is 20210101021.

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 = 120101011988 and 120101012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120101012027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2121327 + ... + 2177206.

It is an arithmetic number, because the mean of its divisors is an integer number (5777229696).

Almost surely, 2^120101012020 is an apocalyptic number.

120101012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120101012020 is an abundant number, since it is smaller than the sum of its proper divisors (157206013388).

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

120101012020 is a wasteful number, since it uses less digits than its factorization.

120101012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298680 (or 4298678 counting only the distinct ones).

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

Adding to 120101012020 its reverse (20210101021), we get a palindrome (140311113041).

The spelling of 120101012020 in words is "one hundred twenty billion, one hundred one million, twelve thousand, twenty".