49901201021 has 16 divisors (see below), whose sum is σ = 58365542400. Its totient is φ = 41771077488.

The previous prime is 49901201017. The next prime is 49901201027. The reversal of 49901201021 is 12010210994.

It is not a de Polignac number, because 49901201021 - 2² = 49901201017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49901201027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3049700 + ... + 3066018.

It is an arithmetic number, because the mean of its divisors is an integer number (3647846400).

Almost surely, 2^49901201021 is an apocalyptic number.

It is an amenable number.

49901201021 is a deficient number, since it is larger than the sum of its proper divisors (8464341379).

49901201021 is a wasteful number, since it uses less digits than its factorization.

49901201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26528.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 49901201021 in words is "forty-nine billion, nine hundred one million, two hundred one thousand, twenty-one".