201102202020021 has 16 divisors (see below), whose sum is σ = 268505434897920. Its totient is φ = 133883598487040.

The previous prime is 201102202020011. The next prime is 201102202020037. The reversal of 201102202020021 is 120020202201102.

It is a cyclic number.

It is not a de Polignac number, because 201102202020021 - 2⁷ = 201102202019893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102202020011) 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, 11464636 + ... + 23100698.

It is an arithmetic number, because the mean of its divisors is an integer number (16781589681120).

Almost surely, 2^{201102202020021} is an apocalyptic number.

It is an amenable number.

201102202020021 is a deficient number, since it is larger than the sum of its proper divisors (67403232877899).

201102202020021 is a wasteful number, since it uses less digits than its factorization.

201102202020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11643996.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201102202020021 its reverse (120020202201102), we get a palindrome (321122404221123).

The spelling of 201102202020021 in words is "two hundred one trillion, one hundred two billion, two hundred two million, twenty thousand, twenty-one".