22247402712 has 64 divisors (see below), whose sum is σ = 57498024960. Its totient is φ = 7165910400.

The previous prime is 22247402647. The next prime is 22247402753. The reversal of 22247402712 is 21720474222.

It is a congruent number.

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, 486262 + ... + 530042.

It is an arithmetic number, because the mean of its divisors is an integer number (898406640).

Almost surely, 2^22247402712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22247402712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28749012480).

22247402712 is an abundant number, since it is smaller than the sum of its proper divisors (35250622248).

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

22247402712 is a wasteful number, since it uses less digits than its factorization.

22247402712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44504 (or 44500 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 33.

Adding to 22247402712 its reverse (21720474222), we get a palindrome (43967876934).

The spelling of 22247402712 in words is "twenty-two billion, two hundred forty-seven million, four hundred two thousand, seven hundred twelve".