222155111376 has 600 divisors, whose sum is σ = 754311096000. Its totient is φ = 62854133760.

The previous prime is 222155111369. The next prime is 222155111413. The reversal of 222155111376 is 673111551222.

222155111376 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 5 + 511 + 137 + 6 = 666.

It is a super-2 number, since 2×222155111376² (a number of 23 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 222155111376.

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, 445200375 + ... + 445200873.

It is an arithmetic number, because the mean of its divisors is an integer number (1257185160).

Almost surely, 2^222155111376 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 222155111376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377155548000).

222155111376 is an abundant number, since it is smaller than the sum of its proper divisors (532155984624).

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

222155111376 is a wasteful number, since it uses less digits than its factorization.

222155111376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 699 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

Adding to 222155111376 its reverse (673111551222), we get a palindrome (895266662598).

The spelling of 222155111376 in words is "two hundred twenty-two billion, one hundred fifty-five million, one hundred eleven thousand, three hundred seventy-six".