201100404402 has 40 divisors (see below), whose sum is σ = 456960569472. Its totient is φ = 66089331000.

The previous prime is 201100404383. The next prime is 201100404403. The reversal of 201100404402 is 204404001102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (201100404403) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8730474 + ... + 8753477.

Almost surely, 2^201100404402 is an apocalyptic number.

201100404402 is an abundant number, since it is smaller than the sum of its proper divisors (255860165070).

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

201100404402 is a wasteful number, since it uses less digits than its factorization.

201100404402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17484036 (or 17484027 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 201100404402 its reverse (204404001102), we get a palindrome (405504405504).

The spelling of 201100404402 in words is "two hundred one billion, one hundred million, four hundred four thousand, four hundred two".