222128940600 has 480 divisors, whose sum is σ = 893810485920. Its totient is φ = 50074951680.

The previous prime is 222128940571. The next prime is 222128940617. The reversal of 222128940600 is 6049821222.

222128940600 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 2 + 8 + 9 + 40 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 8264784 + ... + 8291616.

It is an arithmetic number, because the mean of its divisors is an integer number (1862105179).

Almost surely, 2^222128940600 is an apocalyptic number.

222128940600 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 222128940600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446905242960).

222128940600 is an abundant number, since it is smaller than the sum of its proper divisors (671681545320).

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

222128940600 is a wasteful number, since it uses less digits than its factorization.

222128940600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26941 (or 26923 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 222128940600 in words is "two hundred twenty-two billion, one hundred twenty-eight million, nine hundred forty thousand, six hundred".