222970281 has 4 divisors (see below), whose sum is σ = 297293712. Its totient is φ = 148646852.

The previous prime is 222970277. The next prime is 222970309. The reversal of 222970281 is 182079222.

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 222970281 - 2² = 222970277 is a prime.

It is a super-2 number, since 2×222970281² = 99431492418437922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222970261) 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, 37161711 + ... + 37161716.

It is an arithmetic number, because the mean of its divisors is an integer number (74323428).

Almost surely, 2^222970281 is an apocalyptic number.

It is an amenable number.

222970281 is a deficient number, since it is larger than the sum of its proper divisors (74323431).

222970281 is an equidigital number, since it uses as much as digits as its factorization.

222970281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74323430.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 222970281 is about 14932.1894241936. The cubic root of 222970281 is about 606.3857595708.

The spelling of 222970281 in words is "two hundred twenty-two million, nine hundred seventy thousand, two hundred eighty-one".