222979927240 has 144 divisors (see below), whose sum is σ = 599822756820. Its totient is φ = 74383142400.

The previous prime is 222979927213. The next prime is 222979927243. The reversal of 222979927240 is 42729979222.

It can be written as a sum of positive squares in 6 ways, for example, as 194345195716 + 28634731524 = 440846^2 + 169218^2 .

It is not an unprimeable number, because it can be changed into a prime (222979927243) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2641690 + ... + 2724790.

Almost surely, 2^222979927240 is an apocalyptic number.

222979927240 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 222979927240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299911378410).

222979927240 is an abundant number, since it is smaller than the sum of its proper divisors (376842829580).

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

222979927240 is a wasteful number, since it uses less digits than its factorization.

222979927240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83200 (or 83152 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 222979927240 in words is "two hundred twenty-two billion, nine hundred seventy-nine million, nine hundred twenty-seven thousand, two hundred forty".