2245221251 has 16 divisors (see below), whose sum is σ = 2781912000. Its totient is φ = 1764505728.

The previous prime is 2245221239. The next prime is 2245221259. The reversal of 2245221251 is 1521225422.

2245221251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2245221251 - 2¹⁰ = 2245220227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2245221251.

It is not an unprimeable number, because it can be changed into a prime (2245221259) 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, 69236 + ... + 96353.

It is an arithmetic number, because the mean of its divisors is an integer number (173869500).

Almost surely, 2^2245221251 is an apocalyptic number.

2245221251 is a deficient number, since it is larger than the sum of its proper divisors (536690749).

2245221251 is a wasteful number, since it uses less digits than its factorization.

2245221251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165758.

The product of its digits is 3200, while the sum is 26.

The square root of 2245221251 is about 47383.7656903712. The cubic root of 2245221251 is about 1309.4423458286.

Adding to 2245221251 its reverse (1521225422), we get a palindrome (3766446673).

The spelling of 2245221251 in words is "two billion, two hundred forty-five million, two hundred twenty-one thousand, two hundred fifty-one".