222161319 has 32 divisors (see below), whose sum is σ = 353030400. Its totient is φ = 137648160.

The previous prime is 222161299. The next prime is 222161323. The reversal of 222161319 is 913161222.

222161319 is a `hidden beast` number, since 22 + 21 + 613 + 1 + 9 = 666.

It is not a de Polignac number, because 222161319 - 2⁸ = 222161063 is a prime.

It is a super-2 number, since 2×222161319² = 98711303319639522, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 222161292 and 222161301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222160319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23104 + ... + 31274.

It is an arithmetic number, because the mean of its divisors is an integer number (11032200).

Almost surely, 2^222161319 is an apocalyptic number.

222161319 is a deficient number, since it is larger than the sum of its proper divisors (130869081).

222161319 is a wasteful number, since it uses less digits than its factorization.

222161319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8252 (or 8246 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 222161319 is about 14905.0769538436. The cubic root of 222161319 is about 605.6515249719.

The spelling of 222161319 in words is "two hundred twenty-two million, one hundred sixty-one thousand, three hundred nineteen".