22212641472 has 112 divisors (see below), whose sum is σ = 67361775360. Its totient is φ = 6328046592.

The previous prime is 22212641461. The next prime is 22212641527. The reversal of 22212641472 is 27414621222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×22212641472² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 442554 + ... + 490182.

Almost surely, 2^22212641472 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 22212641472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33680887680).

22212641472 is an abundant number, since it is smaller than the sum of its proper divisors (45149133888).

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

22212641472 is a wasteful number, since it uses less digits than its factorization.

22212641472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47998 (or 47988 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The spelling of 22212641472 in words is "twenty-two billion, two hundred twelve million, six hundred forty-one thousand, four hundred seventy-two".