222670161 has 48 divisors (see below), whose sum is σ = 392014080. Its totient is φ = 124498080.

The previous prime is 222670141. The next prime is 222670163. The reversal of 222670161 is 161076222.

222670161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222670161 - 2²¹ = 220573009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222670163) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60391 + ... + 63971.

It is an arithmetic number, because the mean of its divisors is an integer number (8166960).

Almost surely, 2^222670161 is an apocalyptic number.

222670161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222670161 is a deficient number, since it is larger than the sum of its proper divisors (169343919).

222670161 is a wasteful number, since it uses less digits than its factorization.

222670161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651 (or 3638 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 222670161 is about 14922.1366097486. The cubic root of 222670161 is about 606.1135705191.

The spelling of 222670161 in words is "two hundred twenty-two million, six hundred seventy thousand, one hundred sixty-one".