222129973 has 16 divisors (see below), whose sum is σ = 261467136. Its totient is φ = 186750720.

The previous prime is 222129889. The next prime is 222129977. The reversal of 222129973 is 379921222.

It is a de Polignac number, because none of the positive numbers 2^k-222129973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222129977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9361 + ... + 23062.

It is an arithmetic number, because the mean of its divisors is an integer number (16341696).

Almost surely, 2^222129973 is an apocalyptic number.

It is an amenable number.

222129973 is a deficient number, since it is larger than the sum of its proper divisors (39337163).

222129973 is a wasteful number, since it uses less digits than its factorization.

222129973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32484.

The product of its digits is 27216, while the sum is 37.

The square root of 222129973 is about 14904.0253958452. The cubic root of 222129973 is about 605.6230386964.

The spelling of 222129973 in words is "two hundred twenty-two million, one hundred twenty-nine thousand, nine hundred seventy-three".