201001020022021 has 4 divisors (see below), whose sum is σ = 201019195367200. Its totient is φ = 200982844676844.

The previous prime is 201001020022013. The next prime is 201001020022027. The reversal of 201001020022021 is 120220020100102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201001020022021 - 2³ = 201001020022013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201001020021992 and 201001020022010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001020022027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9087656001 + ... + 9087678118.

It is an arithmetic number, because the mean of its divisors is an integer number (50254798841800).

Almost surely, 2^{201001020022021} is an apocalyptic number.

It is an amenable number.

201001020022021 is a deficient number, since it is larger than the sum of its proper divisors (18175345179).

201001020022021 is a wasteful number, since it uses less digits than its factorization.

201001020022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18175345178.

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

Adding to 201001020022021 its reverse (120220020100102), we get a palindrome (321221040122123).

The spelling of 201001020022021 in words is "two hundred one trillion, one billion, twenty million, twenty-two thousand, twenty-one".