222780028122 has 48 divisors (see below), whose sum is σ = 509242088160. Its totient is φ = 70192732896.

The previous prime is 222780028109. The next prime is 222780028169. The reversal of 222780028122 is 221820087222.

It is a super-2 number, since 2×222780028122² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 583713 + ... + 886724.

It is an arithmetic number, because the mean of its divisors is an integer number (10609210170).

Almost surely, 2^222780028122 is an apocalyptic number.

222780028122 is an abundant number, since it is smaller than the sum of its proper divisors (286462060038).

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

222780028122 is a wasteful number, since it uses less digits than its factorization.

222780028122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470907 (or 1470904 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The spelling of 222780028122 in words is "two hundred twenty-two billion, seven hundred eighty million, twenty-eight thousand, one hundred twenty-two".