222687685321920 has 896 divisors, whose sum is σ = 967087921121280. Its totient is φ = 46974710661120.

The previous prime is 222687685321919. The next prime is 222687685321957. The reversal of 222687685321920 is 29123586786222.

222687685321920 is a `hidden beast` number, since 2 + 2 + 2 + 6 + 8 + 7 + 6 + 8 + 532 + 1 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4065619654 + ... + 4065674426.

It is an arithmetic number, because the mean of its divisors is an integer number (1079339197680).

Almost surely, 2^{222687685321920} is an apocalyptic number.

222687685321920 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 222687685321920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483543960560640).

222687685321920 is an abundant number, since it is smaller than the sum of its proper divisors (744400235799360).

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

222687685321920 is a wasteful number, since it uses less digits than its factorization.

222687685321920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59990 (or 59974 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 63.

The spelling of 222687685321920 in words is "two hundred twenty-two trillion, six hundred eighty-seven billion, six hundred eighty-five million, three hundred twenty-one thousand, nine hundred twenty".