201022001221100 has 18 divisors (see below), whose sum is σ = 436217742650004. Its totient is φ = 80408800488400.

The previous prime is 201022001221009. The next prime is 201022001221187. The reversal of 201022001221100 is 1122100220102.

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, 1005110006006 + ... + 1005110006205.

Almost surely, 2^{201022001221100} is an apocalyptic number.

201022001221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201022001221100 is an abundant number, since it is smaller than the sum of its proper divisors (235195741428904).

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

201022001221100 is a wasteful number, since it uses less digits than its factorization.

201022001221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010220012225 (or 2010220012218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201022001221100 its reverse (1122100220102), we get a palindrome (202144101441202).

The spelling of 201022001221100 in words is "two hundred one trillion, twenty-two billion, one million, two hundred twenty-one thousand, one hundred".