201022202020 has 96 divisors (see below), whose sum is σ = 450666478080. Its totient is φ = 75157125120.

The previous prime is 201022201979. The next prime is 201022202057. The reversal of 201022202020 is 20202220102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3663346 + ... + 3717814.

It is an arithmetic number, because the mean of its divisors is an integer number (4694442480).

Almost surely, 2^201022202020 is an apocalyptic number.

201022202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201022202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225333239040).

201022202020 is an abundant number, since it is smaller than the sum of its proper divisors (249644276060).

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

201022202020 is a wasteful number, since it uses less digits than its factorization.

201022202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54685 (or 54683 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 201022202020 its reverse (20202220102), we get a palindrome (221224422122).

The spelling of 201022202020 in words is "two hundred one billion, twenty-two million, two hundred two thousand, twenty".