514221223261 has 2 divisors, whose sum is σ = 514221223262. Its totient is φ = 514221223260.

The previous prime is 514221223237. The next prime is 514221223289. The reversal of 514221223261 is 162322122415.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 514038811225 + 182412036 = 716965^2 + 13506^2 .

It is a cyclic number.

It is not a de Polignac number, because 514221223261 - 2¹⁵ = 514221190493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514221223211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257110611630 + 257110611631.

It is an arithmetic number, because the mean of its divisors is an integer number (257110611631).

Almost surely, 2^514221223261 is an apocalyptic number.

It is an amenable number.

514221223261 is a deficient number, since it is larger than the sum of its proper divisors (1).

514221223261 is an equidigital number, since it uses as much as digits as its factorization.

514221223261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

Adding to 514221223261 its reverse (162322122415), we get a palindrome (676543345676).

The spelling of 514221223261 in words is "five hundred fourteen billion, two hundred twenty-one million, two hundred twenty-three thousand, two hundred sixty-one".