21130411522 has 16 divisors (see below), whose sum is σ = 34579292832. Its totient is φ = 9604105920.

The previous prime is 21130411513. The next prime is 21130411541. The reversal of 21130411522 is 22511403112.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 21130411493 and 21130411502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570253 + ... + 606175.

It is an arithmetic number, because the mean of its divisors is an integer number (2161205802).

Almost surely, 2^21130411522 is an apocalyptic number.

21130411522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21130411522 is a deficient number, since it is larger than the sum of its proper divisors (13448881310).

21130411522 is a wasteful number, since it uses less digits than its factorization.

21130411522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62673.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 21130411522 its reverse (22511403112), we get a palindrome (43641814634).

The spelling of 21130411522 in words is "twenty-one billion, one hundred thirty million, four hundred eleven thousand, five hundred twenty-two".