22421253015 has 48 divisors (see below), whose sum is σ = 44429007168. Its totient is φ = 10246583808.

The previous prime is 22421252981. The next prime is 22421253079. The reversal of 22421253015 is 51035212422.

It is not a de Polignac number, because 22421253015 - 2¹⁴ = 22421236631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22421253015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1255227 + ... + 1272963.

It is an arithmetic number, because the mean of its divisors is an integer number (925604316).

Almost surely, 2^22421253015 is an apocalyptic number.

22421253015 is a deficient number, since it is larger than the sum of its proper divisors (22007754153).

22421253015 is a wasteful number, since it uses less digits than its factorization.

22421253015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21768 (or 21765 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 22421253015 its reverse (51035212422), we get a palindrome (73456465437).

The spelling of 22421253015 in words is "twenty-two billion, four hundred twenty-one million, two hundred fifty-three thousand, fifteen".