2251066223 has 12 divisors (see below), whose sum is σ = 2636170200. Its totient is φ = 1916529552.

The previous prime is 2251066183. The next prime is 2251066247. The reversal of 2251066223 is 3226601522.

2251066223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2251066223 - 2¹⁰ = 2251065199 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 (2251066423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146861 + ... + 161462.

It is an arithmetic number, because the mean of its divisors is an integer number (219680850).

Almost surely, 2^2251066223 is an apocalyptic number.

2251066223 is a deficient number, since it is larger than the sum of its proper divisors (385103977).

2251066223 is a wasteful number, since it uses less digits than its factorization.

2251066223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308486 (or 308479 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2251066223 is about 47445.4025486137. The cubic root of 2251066223 is about 1310.5776492144.

Adding to 2251066223 its reverse (3226601522), we get a palindrome (5477667745).

The spelling of 2251066223 in words is "two billion, two hundred fifty-one million, sixty-six thousand, two hundred twenty-three".