22220619456 has 448 divisors, whose sum is σ = 72327495680. Its totient is φ = 5887365120.

The previous prime is 22220619371. The next prime is 22220619457. The reversal of 22220619456 is 65491602222.

It is a tau number, because it is divible by the number of its divisors (448).

It is not an unprimeable number, because it can be changed into a prime (22220619457) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 141532530 + ... + 141532686.

Almost surely, 2^22220619456 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 22220619456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36163747840).

22220619456 is an abundant number, since it is smaller than the sum of its proper divisors (50106876224).

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

22220619456 is a wasteful number, since it uses less digits than its factorization.

22220619456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 22220619456 in words is "twenty-two billion, two hundred twenty million, six hundred nineteen thousand, four hundred fifty-six".