2215588901 has 2 divisors, whose sum is σ = 2215588902. Its totient is φ = 2215588900.

The previous prime is 2215588871. The next prime is 2215588933. The reversal of 2215588901 is 1098855122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1354166401 + 861422500 = 36799^2 + 29350^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215588901 - 2²² = 2211394597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215588981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107794450 + 1107794451.

It is an arithmetic number, because the mean of its divisors is an integer number (1107794451).

Almost surely, 2^2215588901 is an apocalyptic number.

It is an amenable number.

2215588901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215588901 is an equidigital number, since it uses as much as digits as its factorization.

2215588901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 41.

The square root of 2215588901 is about 47070.0425005119. The cubic root of 2215588901 is about 1303.6561575783.

The spelling of 2215588901 in words is "two billion, two hundred fifteen million, five hundred eighty-eight thousand, nine hundred one".