220251223 has 2 divisors, whose sum is σ = 220251224. Its totient is φ = 220251222.

The previous prime is 220251209. The next prime is 220251247. The reversal of 220251223 is 322152022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220251223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220251223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220251253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110125611 + 110125612.

It is an arithmetic number, because the mean of its divisors is an integer number (110125612).

Almost surely, 2^220251223 is an apocalyptic number.

220251223 is a deficient number, since it is larger than the sum of its proper divisors (1).

220251223 is an equidigital number, since it uses as much as digits as its factorization.

220251223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 220251223 is about 14840.8632835156. The cubic root of 220251223 is about 603.9107719821.

The spelling of 220251223 in words is "two hundred twenty million, two hundred fifty-one thousand, two hundred twenty-three".