222498988078 has 16 divisors (see below), whose sum is σ = 337756728960. Its totient is φ = 109918012000.

The previous prime is 222498987983. The next prime is 222498988079. The reversal of 222498988078 is 870889894222.

It is a super-2 number, since 2×222498988078² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222498988079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053013 + ... + 1246528.

It is an arithmetic number, because the mean of its divisors is an integer number (21109795560).

Almost surely, 2^222498988078 is an apocalyptic number.

222498988078 is a deficient number, since it is larger than the sum of its proper divisors (115257740882).

222498988078 is a wasteful number, since it uses less digits than its factorization.

222498988078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300123.

The product of its (nonzero) digits is 74317824, while the sum is 67.

The spelling of 222498988078 in words is "two hundred twenty-two billion, four hundred ninety-eight million, nine hundred eighty-eight thousand, seventy-eight".