21122014210 has 32 divisors (see below), whose sum is σ = 42258532032. Its totient is φ = 7535810880.

The previous prime is 21122014171. The next prime is 21122014237. The reversal of 21122014210 is 1241022112.

It is a super-2 number, since 2×21122014210² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1805664 + ... + 1817323.

It is an arithmetic number, because the mean of its divisors is an integer number (1320579126).

Almost surely, 2^21122014210 is an apocalyptic number.

21122014210 is an abundant number, since it is smaller than the sum of its proper divisors (21136517822).

21122014210 is a wasteful number, since it uses less digits than its factorization.

21122014210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623058.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21122014210 its reverse (1241022112), we get a palindrome (22363036322).

The spelling of 21122014210 in words is "twenty-one billion, one hundred twenty-two million, fourteen thousand, two hundred ten".