222222839445 has 40 divisors (see below), whose sum is σ = 399558746400. Its totient is φ = 118160713440.

The previous prime is 222222839407. The next prime is 222222839479. The reversal of 222222839445 is 544938222222.

222222839445 is a `hidden beast` number, since 22 + 222 + 283 + 94 + 45 = 666.

It is not a de Polignac number, because 222222839445 - 2¹⁴ = 222222823061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 222222839445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 694795 + ... + 962904.

It is an arithmetic number, because the mean of its divisors is an integer number (9988968660).

Almost surely, 2^222222839445 is an apocalyptic number.

It is an amenable number.

222222839445 is a deficient number, since it is larger than the sum of its proper divisors (177335906955).

222222839445 is a wasteful number, since it uses less digits than its factorization.

222222839445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658047 (or 1658038 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The spelling of 222222839445 in words is "two hundred twenty-two billion, two hundred twenty-two million, eight hundred thirty-nine thousand, four hundred forty-five".