20101022020201 has 16 divisors (see below), whose sum is σ = 21735084974400. Its totient is φ = 18578608025760.

The previous prime is 20101022020171. The next prime is 20101022020291. The reversal of 20101022020201 is 10202022010102.

It is a happy number.

It is not a de Polignac number, because 20101022020201 - 2²⁷ = 20100887802473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101022020291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35457871 + ... + 36020308.

It is an arithmetic number, because the mean of its divisors is an integer number (1358442810900).

Almost surely, 2^{20101022020201} is an apocalyptic number.

It is an amenable number.

20101022020201 is a deficient number, since it is larger than the sum of its proper divisors (1634062954199).

20101022020201 is an frugal number, since it uses more digits than its factorization.

20101022020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71478277 (or 71478239 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20101022020201 its reverse (10202022010102), we get a palindrome (30303044030303).

The spelling of 20101022020201 in words is "twenty trillion, one hundred one billion, twenty-two million, twenty thousand, two hundred one".