222276044544 has 72 divisors (see below), whose sum is σ = 592445976192. Its totient is φ = 73983360000.

The previous prime is 222276044479. The next prime is 222276044587. The reversal of 222276044544 is 445440672222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222276044496 and 222276044505.

It is a congruent number.

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, 312669 + ... + 736419.

It is an arithmetic number, because the mean of its divisors is an integer number (8228416336).

Almost surely, 2^222276044544 is an apocalyptic number.

222276044544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222276044544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296222988096).

222276044544 is an abundant number, since it is smaller than the sum of its proper divisors (370169931648).

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

222276044544 is an equidigital number, since it uses as much as digits as its factorization.

222276044544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424453 (or 424439 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 42.

The spelling of 222276044544 in words is "two hundred twenty-two billion, two hundred seventy-six million, forty-four thousand, five hundred forty-four".