112098405721 has 9 divisors (see below), whose sum is σ = 117192206271. Its totient is φ = 107217196152.

The previous prime is 112098405707. The next prime is 112098405779. The reversal of 112098405721 is 127504890211.

The square root of 112098405721 is 334811.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18072769225 + 94025636496 = 134435^2 + 306636^2 .

It is not a de Polignac number, because 112098405721 - 2¹³ = 112098397529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112098405821) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7693375 + ... + 7707931.

Almost surely, 2^112098405721 is an apocalyptic number.

112098405721 is the 334811-st square number.

112098405721 is the 167406-th centered octagonal number.

It is an amenable number.

112098405721 is a deficient number, since it is larger than the sum of its proper divisors (5093800550).

112098405721 is an frugal number, since it uses more digits than its factorization.

112098405721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29160 (or 14580 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 112098405721 in words is "one hundred twelve billion, ninety-eight million, four hundred five thousand, seven hundred twenty-one".