201002201100 has 54 divisors (see below), whose sum is σ = 630030235380. Its totient is φ = 53600586720.

The previous prime is 201002201093. The next prime is 201002201117. The reversal of 201002201100 is 1102200102.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 111666990 + ... + 111668789.

Almost surely, 2^201002201100 is an apocalyptic number.

201002201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201002201100 is an abundant number, since it is smaller than the sum of its proper divisors (429028034280).

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

201002201100 is a wasteful number, since it uses less digits than its factorization.

201002201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223335799 (or 223335789 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 201002201100 its reverse (1102200102), we get a palindrome (202104401202).

The spelling of 201002201100 in words is "two hundred one billion, two million, two hundred one thousand, one hundred".