21224102514 has 16 divisors (see below), whose sum is σ = 42563872128. Its totient is φ = 7055422992.

The previous prime is 21224102461. The next prime is 21224102521. The reversal of 21224102514 is 41520142212.

It is a super-2 number, since 2×21224102514² (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 7 ways as a sum of consecutive naturals, for example, 4817077 + ... + 4821480.

It is an arithmetic number, because the mean of its divisors is an integer number (2660242008).

Almost surely, 2^21224102514 is an apocalyptic number.

21224102514 is an abundant number, since it is smaller than the sum of its proper divisors (21339769614).

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

21224102514 is a wasteful number, since it uses less digits than its factorization.

21224102514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9638929.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 21224102514 its reverse (41520142212), we get a palindrome (62744244726).

The spelling of 21224102514 in words is "twenty-one billion, two hundred twenty-four million, one hundred two thousand, five hundred fourteen".