222412530 has 128 divisors (see below), whose sum is σ = 600680448. Its totient is φ = 52411392.

The previous prime is 222412523. The next prime is 222412543. The reversal of 222412530 is 35214222.

It is a junction number, because it is equal to n+sod(n) for n = 222412497 and 222412506.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 785769 + ... + 786051.

It is an arithmetic number, because the mean of its divisors is an integer number (4692816).

Almost surely, 2^222412530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222412530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300340224).

222412530 is an abundant number, since it is smaller than the sum of its proper divisors (378267918).

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

222412530 is a wasteful number, since it uses less digits than its factorization.

222412530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 222412530 is about 14913.5016008984. The cubic root of 222412530 is about 605.8797210338.

Adding to 222412530 its reverse (35214222), we get a palindrome (257626752).

The spelling of 222412530 in words is "two hundred twenty-two million, four hundred twelve thousand, five hundred thirty".