14021221522 has 24 divisors (see below), whose sum is σ = 26689748400. Its totient is φ = 5462813160.

The previous prime is 14021221519. The next prime is 14021221541. The reversal of 14021221522 is 22512212041.

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 = 14021221493 and 14021221502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6502272 + ... + 6504427.

It is an arithmetic number, because the mean of its divisors is an integer number (1112072850).

Almost surely, 2^14021221522 is an apocalyptic number.

14021221522 is a deficient number, since it is larger than the sum of its proper divisors (12668526878).

14021221522 is a wasteful number, since it uses less digits than its factorization.

14021221522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13006726 (or 13006719 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 14021221522 its reverse (22512212041), we get a palindrome (36533433563).

The spelling of 14021221522 in words is "fourteen billion, twenty-one million, two hundred twenty-one thousand, five hundred twenty-two".