21130998557241 has 16 divisors (see below), whose sum is σ = 28198942020864. Its totient is φ = 14075196031104.

The previous prime is 21130998557237. The next prime is 21130998557269. The reversal of 21130998557241 is 14275589903112.

It is not a de Polignac number, because 21130998557241 - 2² = 21130998557237 is a prime.

It is a super-2 number, since 2×21130998557241² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21130998557231) 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, 37191205 + ... + 37755101.

It is an arithmetic number, because the mean of its divisors is an integer number (1762433876304).

Almost surely, 2^{21130998557241} is an apocalyptic number.

It is an amenable number.

21130998557241 is a deficient number, since it is larger than the sum of its proper divisors (7067943463623).

21130998557241 is a wasteful number, since it uses less digits than its factorization.

21130998557241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574640.

The product of its (nonzero) digits is 5443200, while the sum is 57.

The spelling of 21130998557241 in words is "twenty-one trillion, one hundred thirty billion, nine hundred ninety-eight million, five hundred fifty-seven thousand, two hundred forty-one".