2020120102001 has 12 divisors (see below), whose sum is σ = 2046115438668. Its totient is φ = 1994243023872.

The previous prime is 2020120101997. The next prime is 2020120102093. The reversal of 2020120102001 is 1002010210202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 12415307776 + 2007704794225 = 111424^2 + 1416935^2 .

It is not a de Polignac number, because 2020120102001 - 2² = 2020120101997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020120122001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15222005 + ... + 15354141.

It is an arithmetic number, because the mean of its divisors is an integer number (170509619889).

Almost surely, 2^{2020120102001} is an apocalyptic number.

It is an amenable number.

2020120102001 is a deficient number, since it is larger than the sum of its proper divisors (25995336667).

2020120102001 is an frugal number, since it uses more digits than its factorization.

2020120102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133028 (or 132631 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2020120102001 its reverse (1002010210202), we get a palindrome (3022130312203).

The spelling of 2020120102001 in words is "two trillion, twenty billion, one hundred twenty million, one hundred two thousand, one".