21210200201022 has 32 divisors (see below), whose sum is σ = 48480663628800. Its totient is φ = 6060031447008.

The previous prime is 21210200201017. The next prime is 21210200201023. The reversal of 21210200201022 is 22010200201212.

It is a junction number, because it is equal to n+sod(n) for n = 21210200200992 and 21210200201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210200201023) 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, 10361104 + ... + 12238172.

It is an arithmetic number, because the mean of its divisors is an integer number (1515020738400).

Almost surely, 2^{21210200201022} is an apocalyptic number.

21210200201022 is an abundant number, since it is smaller than the sum of its proper divisors (27270463427778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21210200201022 is a wasteful number, since it uses less digits than its factorization.

21210200201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146120.

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

Adding to 21210200201022 its reverse (22010200201212), we get a palindrome (43220400402234).

The spelling of 21210200201022 in words is "twenty-one trillion, two hundred ten billion, two hundred million, two hundred one thousand, twenty-two".