21412601522 has 16 divisors (see below), whose sum is σ = 34592877312. Its totient is φ = 9881799120.

The previous prime is 21412601519. The next prime is 21412601579. The reversal of 21412601522 is 22510621412.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 21412601491 and 21412601500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292373 + ... + 358199.

It is an arithmetic number, because the mean of its divisors is an integer number (2162054832).

Almost surely, 2^21412601522 is an apocalyptic number.

21412601522 is a deficient number, since it is larger than the sum of its proper divisors (13180275790).

21412601522 is a wasteful number, since it uses less digits than its factorization.

21412601522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78353.

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 21412601522 in words is "twenty-one billion, four hundred twelve million, six hundred one thousand, five hundred twenty-two".