226055021 has 2 divisors, whose sum is σ = 226055022. Its totient is φ = 226055020.

The previous prime is 226054993. The next prime is 226055033. The reversal of 226055021 is 120550622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130210921 + 95844100 = 11411^2 + 9790^2 .

It is a cyclic number.

It is not a de Polignac number, because 226055021 - 2¹⁸ = 225792877 is a prime.

It is a super-2 number, since 2×226055021² = 102201745038620882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226055051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113027510 + 113027511.

It is an arithmetic number, because the mean of its divisors is an integer number (113027511).

Almost surely, 2^226055021 is an apocalyptic number.

It is an amenable number.

226055021 is a deficient number, since it is larger than the sum of its proper divisors (1).

226055021 is an equidigital number, since it uses as much as digits as its factorization.

226055021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 226055021 is about 15035.1262382462. The cubic root of 226055021 is about 609.1693621317.

The spelling of 226055021 in words is "two hundred twenty-six million, fifty-five thousand, twenty-one".