226363626421 has 2 divisors, whose sum is σ = 226363626422. Its totient is φ = 226363626420.

The previous prime is 226363626409. The next prime is 226363626431. The reversal of 226363626421 is 124626363622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130703940900 + 95659685521 = 361530^2 + 309289^2 .

It is a cyclic number.

It is not a de Polignac number, because 226363626421 - 2²⁷ = 226229408693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226363626431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113181813210 + 113181813211.

It is an arithmetic number, because the mean of its divisors is an integer number (113181813211).

Almost surely, 2^226363626421 is an apocalyptic number.

It is an amenable number.

226363626421 is a deficient number, since it is larger than the sum of its proper divisors (1).

226363626421 is an equidigital number, since it uses as much as digits as its factorization.

226363626421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 43.

The spelling of 226363626421 in words is "two hundred twenty-six billion, three hundred sixty-three million, six hundred twenty-six thousand, four hundred twenty-one".