222391943842 has 16 divisors (see below), whose sum is σ = 340703615232. Its totient is φ = 108824323360.

The previous prime is 222391943797. The next prime is 222391943881. The reversal of 222391943842 is 248349193222.

It is a happy number.

222391943842 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×222391943842⁴ (a number of 46 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2118363 + ... + 2220865.

It is an arithmetic number, because the mean of its divisors is an integer number (21293975952).

Almost surely, 2^222391943842 is an apocalyptic number.

222391943842 is a deficient number, since it is larger than the sum of its proper divisors (118311671390).

222391943842 is a wasteful number, since it uses less digits than its factorization.

222391943842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125633.

The product of its digits is 1492992, while the sum is 49.

The spelling of 222391943842 in words is "two hundred twenty-two billion, three hundred ninety-one million, nine hundred forty-three thousand, eight hundred forty-two".