21099089914297 has 8 divisors (see below), whose sum is σ = 21780531021312. Its totient is φ = 20417700388800.

The previous prime is 21099089914237. The next prime is 21099089914313. The reversal of 21099089914297 is 79241998099012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21099089914297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21099089914237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12063229 + ... + 13701082.

It is an arithmetic number, because the mean of its divisors is an integer number (2722566377664).

Almost surely, 2^{21099089914297} is an apocalyptic number.

It is an amenable number.

21099089914297 is a deficient number, since it is larger than the sum of its proper divisors (681441107015).

21099089914297 is a wasteful number, since it uses less digits than its factorization.

21099089914297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25790759.

The product of its (nonzero) digits is 52907904, while the sum is 70.

The spelling of 21099089914297 in words is "twenty-one trillion, ninety-nine billion, eighty-nine million, nine hundred fourteen thousand, two hundred ninety-seven".