2272202731 has 2 divisors, whose sum is σ = 2272202732. Its totient is φ = 2272202730.

The previous prime is 2272202701. The next prime is 2272202747. The reversal of 2272202731 is 1372022722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2272202731 - 2¹⁹ = 2271678443 is a prime.

It is a super-2 number, since 2×2272202731² = 10325810501527716722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2272202731.

It is not a weakly prime, because it can be changed into another prime (2272202701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136101365 + 1136101366.

It is an arithmetic number, because the mean of its divisors is an integer number (1136101366).

Almost surely, 2^2272202731 is an apocalyptic number.

2272202731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2272202731 is an equidigital number, since it uses as much as digits as its factorization.

2272202731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 2272202731 is about 47667.6277047642. The cubic root of 2272202731 is about 1314.6667906200. Note that the first 3 decimals are identical.

Subtracting from 2272202731 its reverse (1372022722), we obtain a square (900180009 = 30003²).

The spelling of 2272202731 in words is "two billion, two hundred seventy-two million, two hundred two thousand, seven hundred thirty-one".