20200000202001 has 24 divisors (see below), whose sum is σ = 29312260759080. Its totient is φ = 13404626240256.

The previous prime is 20200000201939. The next prime is 20200000202003. The reversal of 20200000202001 is 10020200000202.

It can be written as a sum of positive squares in 4 ways, for example, as 1685258330625 + 18514741871376 = 1298175^2 + 4302876^2 .

It is not a de Polignac number, because 20200000202001 - 2¹⁵ = 20200000169233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20200000202003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7379335 + ... + 9739331.

It is an arithmetic number, because the mean of its divisors is an integer number (1221344198295).

Almost surely, 2^{20200000202001} is an apocalyptic number.

It is an amenable number.

20200000202001 is a deficient number, since it is larger than the sum of its proper divisors (9112260557079).

20200000202001 is a wasteful number, since it uses less digits than its factorization.

20200000202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364385 (or 2364382 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20200000202001 its reverse (10020200000202), we get a palindrome (30220200202203).

The spelling of 20200000202001 in words is "twenty trillion, two hundred billion, two hundred two thousand, one".