201000021202100 has 72 divisors (see below), whose sum is σ = 441008951620608. Its totient is φ = 79512089529600.

The previous prime is 201000021202073. The next prime is 201000021202121. The reversal of 201000021202100 is 1202120000102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21307286 + ... + 29257485.

It is an arithmetic number, because the mean of its divisors is an integer number (6125124328064).

Almost surely, 2^{201000021202100} is an apocalyptic number.

201000021202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201000021202100 is an abundant number, since it is smaller than the sum of its proper divisors (240008930418508).

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

201000021202100 is a wasteful number, since it uses less digits than its factorization.

201000021202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50565225 (or 50565218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201000021202100 its reverse (1202120000102), we get a palindrome (202202141202202).

The spelling of 201000021202100 in words is "two hundred one trillion, twenty-one million, two hundred two thousand, one hundred".