222445577890 has 16 divisors (see below), whose sum is σ = 402434541432. Its totient is φ = 88526564224.

The previous prime is 222445577821. The next prime is 222445577903. The reversal of 222445577890 is 98775544222.

It can be written as a sum of positive squares in 4 ways, for example, as 188402006809 + 34043571081 = 434053^2 + 184509^2 .

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, 56456299 + ... + 56460238.

Almost surely, 2^222445577890 is an apocalyptic number.

222445577890 is a deficient number, since it is larger than the sum of its proper divisors (179988963542).

222445577890 is a wasteful number, since it uses less digits than its factorization.

222445577890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112916741.

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 222445577890 in words is "two hundred twenty-two billion, four hundred forty-five million, five hundred seventy-seven thousand, eight hundred ninety".