201101209980 has 96 divisors (see below), whose sum is σ = 650406516480. Its totient is φ = 45884052480.

The previous prime is 201101209951. The next prime is 201101209993. The reversal of 201101209980 is 89902101102.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8950510 + ... + 8972949.

It is an arithmetic number, because the mean of its divisors is an integer number (6775067880).

Almost surely, 2^201101209980 is an apocalyptic number.

201101209980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201101209980 is an abundant number, since it is smaller than the sum of its proper divisors (449305306500).

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

201101209980 is a wasteful number, since it uses less digits than its factorization.

201101209980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17923499 (or 17923497 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 201101209980 in words is "two hundred one billion, one hundred one million, two hundred nine thousand, nine hundred eighty".