2257218205 has 16 divisors (see below), whose sum is σ = 2965439808. Its totient is φ = 1635760000.

The previous prime is 2257218203. The next prime is 2257218211. The reversal of 2257218205 is 5028127522.

It is not a de Polignac number, because 2257218205 - 2¹ = 2257218203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257218203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57571 + ... + 88480.

It is an arithmetic number, because the mean of its divisors is an integer number (185339988).

Almost surely, 2^2257218205 is an apocalyptic number.

It is an amenable number.

2257218205 is a deficient number, since it is larger than the sum of its proper divisors (708221603).

2257218205 is a wasteful number, since it uses less digits than its factorization.

2257218205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146348.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 2257218205 is about 47510.1905384519. The cubic root of 2257218205 is about 1311.7704641717.

The spelling of 2257218205 in words is "two billion, two hundred fifty-seven million, two hundred eighteen thousand, two hundred five".