201099858891912 has 48 divisors (see below), whose sum is σ = 544846353742080. Its totient is φ = 67008559826400.

The previous prime is 201099858891871. The next prime is 201099858891913. The reversal of 201099858891912 is 219198858990102.

201099858891912 is a `hidden beast` number, since 2 + 0 + 10 + 9 + 9 + 8 + 588 + 9 + 19 + 12 = 666.

201099858891912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (201099858891913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 514938264 + ... + 515328647.

It is an arithmetic number, because the mean of its divisors is an integer number (11350965702960).

Almost surely, 2^{201099858891912} is an apocalyptic number.

It is an amenable number.

201099858891912 is an abundant number, since it is smaller than the sum of its proper divisors (343746494850168).

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

201099858891912 is a wasteful number, since it uses less digits than its factorization.

201099858891912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030269634 (or 1030269627 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 72.

The spelling of 201099858891912 in words is "two hundred one trillion, ninety-nine billion, eight hundred fifty-eight million, eight hundred ninety-one thousand, nine hundred twelve".