222283017961 has 27 divisors (see below), whose sum is σ = 231650162679. Its totient is φ = 213292575600.

The previous prime is 222283017953. The next prime is 222283018003. The reversal of 222283017961 is 169710382222.

The square root of 222283017961 is 471469.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7228230361 + 215054787600 = 85019^2 + 463740^2 .

It is not a de Polignac number, because 222283017961 - 2³ = 222283017953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222283017941) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1696816866 + ... + 1696816996.

Almost surely, 2^222283017961 is an apocalyptic number.

222283017961 is the 471469-th square number.

222283017961 is the 235735-th centered octagonal number.

It is an amenable number.

222283017961 is a deficient number, since it is larger than the sum of its proper divisors (9367144718).

222283017961 is an frugal number, since it uses more digits than its factorization.

222283017961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 222283017961 in words is "two hundred twenty-two billion, two hundred eighty-three million, seventeen thousand, nine hundred sixty-one".