201022210101021 has 16 divisors (see below), whose sum is σ = 278366619528000. Its totient is φ = 128927697452928.

The previous prime is 201022210100977. The next prime is 201022210101043. The reversal of 201022210101021 is 120101012220102.

It is not a de Polignac number, because 201022210101021 - 2²⁶ = 201022142992157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201022210106021) 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, 10174208671 + ... + 10174228428.

It is an arithmetic number, because the mean of its divisors is an integer number (17397913720500).

Almost surely, 2^{201022210101021} is an apocalyptic number.

It is an amenable number.

201022210101021 is a deficient number, since it is larger than the sum of its proper divisors (77344409426979).

201022210101021 is a wasteful number, since it uses less digits than its factorization.

201022210101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20348437228.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201022210101021 its reverse (120101012220102), we get a palindrome (321123222321123).

The spelling of 201022210101021 in words is "two hundred one trillion, twenty-two billion, two hundred ten million, one hundred one thousand, twenty-one".