222363260928 has 144 divisors (see below), whose sum is σ = 643024287360. Its totient is φ = 74028957696.

The previous prime is 222363260909. The next prime is 222363260981. The reversal of 222363260928 is 829062363222.

222363260928 is a `hidden beast` number, since 2 + 2 + 2 + 3 + 6 + 32 + 609 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×222363260928² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15715425 + ... + 15729567.

It is an arithmetic number, because the mean of its divisors is an integer number (4465446440).

Almost surely, 2^222363260928 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 222363260928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321512143680).

222363260928 is an abundant number, since it is smaller than the sum of its proper divisors (420661026432).

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

222363260928 is a wasteful number, since it uses less digits than its factorization.

222363260928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15024 (or 15001 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 222363260928 in words is "two hundred twenty-two billion, three hundred sixty-three million, two hundred sixty thousand, nine hundred twenty-eight".