222523212961 has 4 divisors (see below), whose sum is σ = 254312243392. Its totient is φ = 190734182532.

The previous prime is 222523212883. The next prime is 222523212983. The reversal of 222523212961 is 169212325222.

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.

It is a cyclic number.

It is not a de Polignac number, because 222523212961 - 2⁷ = 222523212833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222523212961.

It is not an unprimeable number, because it can be changed into a prime (222523212661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15894515205 + ... + 15894515218.

It is an arithmetic number, because the mean of its divisors is an integer number (63578060848).

Almost surely, 2^222523212961 is an apocalyptic number.

It is an amenable number.

222523212961 is a deficient number, since it is larger than the sum of its proper divisors (31789030431).

222523212961 is an equidigital number, since it uses as much as digits as its factorization.

222523212961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31789030430.

The product of its digits is 51840, while the sum is 37.

The spelling of 222523212961 in words is "two hundred twenty-two billion, five hundred twenty-three million, two hundred twelve thousand, nine hundred sixty-one".