222962161 has 4 divisors (see below), whose sum is σ = 232656192. Its totient is φ = 213268132.

The previous prime is 222962099. The next prime is 222962167. The reversal of 222962161 is 161269222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161269222 = 2 ⋅80634611.

It is a cyclic number.

It is not a de Polignac number, because 222962161 - 2²¹ = 220865009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222962167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4846981 + ... + 4847026.

It is an arithmetic number, because the mean of its divisors is an integer number (58164048).

Almost surely, 2^222962161 is an apocalyptic number.

It is an amenable number.

222962161 is a deficient number, since it is larger than the sum of its proper divisors (9694031).

222962161 is an equidigital number, since it uses as much as digits as its factorization.

222962161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9694030.

The product of its digits is 5184, while the sum is 31.

The square root of 222962161 is about 14931.9175258906. The cubic root of 222962161 is about 606.3783984819.

The spelling of 222962161 in words is "two hundred twenty-two million, nine hundred sixty-two thousand, one hundred sixty-one".