201022220220100 has 18 divisors (see below), whose sum is σ = 436218217877834. Its totient is φ = 80408888088000.

The previous prime is 201022220220097. The next prime is 201022220220113. The reversal of 201022220220100 is 1022022220102.

It can be written as a sum of positive squares in 3 ways, for example, as 39094406512704 + 161927813707396 = 6252552^2 + 12725086^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1005111101001 + ... + 1005111101200.

Almost surely, 2^{201022220220100} is an apocalyptic number.

201022220220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201022220220100 is an abundant number, since it is smaller than the sum of its proper divisors (235195997657734).

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

201022220220100 is a wasteful number, since it uses less digits than its factorization.

201022220220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010222202215 (or 2010222202208 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 201022220220100 its reverse (1022022220102), we get a palindrome (202044242440202).

The spelling of 201022220220100 in words is "two hundred one trillion, twenty-two billion, two hundred twenty million, two hundred twenty thousand, one hundred".