222213020234 has 4 divisors (see below), whose sum is σ = 333319530354. Its totient is φ = 111106510116.

The previous prime is 222213020219. The next prime is 222213020297. The reversal of 222213020234 is 432020312222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 432020312222 = 2 ⋅216010156111.

It can be written as a sum of positive squares in only one way, i.e., 166017947209 + 56195073025 = 407453^2 + 237055^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55553255057 + ... + 55553255060.

Almost surely, 2^222213020234 is an apocalyptic number.

222213020234 is a deficient number, since it is larger than the sum of its proper divisors (111106510120).

222213020234 is a wasteful number, since it uses less digits than its factorization.

222213020234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111106510119.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 222213020234 its reverse (432020312222), we get a palindrome (654233332456).

The spelling of 222213020234 in words is "two hundred twenty-two billion, two hundred thirteen million, twenty thousand, two hundred thirty-four".