222606407761920 has 1520 divisors, whose sum is σ = 982299459142848. Its totient is φ = 46965467381760.

The previous prime is 222606407761891. The next prime is 222606407761931. The reversal of 222606407761920 is 29167704606222.

It is a happy number.

222606407761920 is a `hidden beast` number, since 2 + 2 + 2 + 606 + 4 + 0 + 7 + 7 + 6 + 1 + 9 + 20 = 666.

It is a super-2 number, since 2×222606407761920² (a number of 29 digits) contains 22 as substring.

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 (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9661305600 + ... + 9661328640.

Almost surely, 2^{222606407761920} is an apocalyptic number.

222606407761920 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 222606407761920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491149729571424).

222606407761920 is an abundant number, since it is smaller than the sum of its proper divisors (759693051380928).

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

222606407761920 is an frugal number, since it uses more digits than its factorization.

222606407761920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23114 (or 23071 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 222606407761920 in words is "two hundred twenty-two trillion, six hundred six billion, four hundred seven million, seven hundred sixty-one thousand, nine hundred twenty".