2272202521 has 2 divisors, whose sum is σ = 2272202522. Its totient is φ = 2272202520.

The previous prime is 2272202489. The next prime is 2272202539. The reversal of 2272202521 is 1252022722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2070250000 + 201952521 = 45500^2 + 14211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2272202521 - 2⁵ = 2272202489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2272202221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136101260 + 1136101261.

It is an arithmetic number, because the mean of its divisors is an integer number (1136101261).

Almost surely, 2^2272202521 is an apocalyptic number.

It is an amenable number.

2272202521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2272202521 is an equidigital number, since it uses as much as digits as its factorization.

2272202521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 2272202521 is about 47667.6255020113. The cubic root of 2272202521 is about 1314.6667501189. Note that the first 3 decimals are identical.

The spelling of 2272202521 in words is "two billion, two hundred seventy-two million, two hundred two thousand, five hundred twenty-one".