223227527676421 has 2 divisors, whose sum is σ = 223227527676422. Its totient is φ = 223227527676420.

The previous prime is 223227527676347. The next prime is 223227527676437. The reversal of 223227527676421 is 124676725722322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122747232348225 + 100480295328196 = 11079135^2 + 10023986^2 .

It is a cyclic number.

It is not a de Polignac number, because 223227527676421 - 2²⁹ = 223226990805509 is a prime.

It is a super-3 number, since 3×223227527676421³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223227527679421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111613763838210 + 111613763838211.

It is an arithmetic number, because the mean of its divisors is an integer number (111613763838211).

Almost surely, 2^{223227527676421} is an apocalyptic number.

It is an amenable number.

223227527676421 is a deficient number, since it is larger than the sum of its proper divisors (1).

223227527676421 is an equidigital number, since it uses as much as digits as its factorization.

223227527676421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47416320, while the sum is 58.

The spelling of 223227527676421 in words is "two hundred twenty-three trillion, two hundred twenty-seven billion, five hundred twenty-seven million, six hundred seventy-six thousand, four hundred twenty-one".