21224131014 has 16 divisors (see below), whose sum is σ = 43144135920. Its totient is φ = 6958731360.

The previous prime is 21224131007. The next prime is 21224131039. The reversal of 21224131014 is 41013142212.

It is a congruent number.

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, 28994349 + ... + 28995080.

It is an arithmetic number, because the mean of its divisors is an integer number (2696508495).

Almost surely, 2^21224131014 is an apocalyptic number.

21224131014 is an abundant number, since it is smaller than the sum of its proper divisors (21920004906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21224131014 is a wasteful number, since it uses less digits than its factorization.

21224131014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57989495.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21224131014 its reverse (41013142212), we get a palindrome (62237273226).

The spelling of 21224131014 in words is "twenty-one billion, two hundred twenty-four million, one hundred thirty-one thousand, fourteen".