2215044901 has 2 divisors, whose sum is σ = 2215044902. Its totient is φ = 2215044900.

The previous prime is 2215044899. The next prime is 2215045031. The reversal of 2215044901 is 1094405122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1538992900 + 676052001 = 39230^2 + 26001^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215044901 - 2¹ = 2215044899 is a prime.

Together with 2215044899, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2215044901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215044401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107522450 + 1107522451.

It is an arithmetic number, because the mean of its divisors is an integer number (1107522451).

Almost surely, 2^2215044901 is an apocalyptic number.

It is an amenable number.

2215044901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215044901 is an equidigital number, since it uses as much as digits as its factorization.

2215044901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2215044901 is about 47064.2635233996. The cubic root of 2215044901 is about 1303.5494520127.

The spelling of 2215044901 in words is "two billion, two hundred fifteen million, forty-four thousand, nine hundred one".