222556942 has 4 divisors (see below), whose sum is σ = 333835416. Its totient is φ = 111278470.

The previous prime is 222556927. The next prime is 222556981. The reversal of 222556942 is 249655222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249655222 = 2 ⋅124827611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55639234 + ... + 55639237.

It is an arithmetic number, because the mean of its divisors is an integer number (83458854).

Almost surely, 2^222556942 is an apocalyptic number.

222556942 is a deficient number, since it is larger than the sum of its proper divisors (111278474).

222556942 is a wasteful number, since it uses less digits than its factorization.

222556942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111278473.

The product of its digits is 86400, while the sum is 37.

The square root of 222556942 is about 14918.3424682503. The cubic root of 222556942 is about 606.0108248165.

The spelling of 222556942 in words is "two hundred twenty-two million, five hundred fifty-six thousand, nine hundred forty-two".