222997259520 has 864 divisors, whose sum is σ = 945672134400. Its totient is φ = 49579278336.

The previous prime is 222997259479. The next prime is 222997259543. The reversal of 222997259520 is 25952799222.

It is a happy number.

222997259520 is a `hidden beast` number, since 2 + 2 + 2 + 9 + 97 + 25 + 9 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 62655501 + ... + 62659059.

Almost surely, 2^222997259520 is an apocalyptic number.

222997259520 is a gapful number since it is divisible by the number (20) 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 222997259520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472836067200).

222997259520 is an abundant number, since it is smaller than the sum of its proper divisors (722674874880).

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

222997259520 is a wasteful number, since it uses less digits than its factorization.

222997259520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640 (or 3613 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 222997259520 in words is "two hundred twenty-two billion, nine hundred ninety-seven million, two hundred fifty-nine thousand, five hundred twenty".