420224100269 has 2 divisors, whose sum is σ = 420224100270. Its totient is φ = 420224100268.

The previous prime is 420224100203. The next prime is 420224100287. The reversal of 420224100269 is 962001422024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 301029990244 + 119194110025 = 548662^2 + 345245^2 .

It is a cyclic number.

It is not a de Polignac number, because 420224100269 - 2³² = 415929132973 is a prime.

It is a super-2 number, since 2×420224100269² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420224100169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210112050134 + 210112050135.

It is an arithmetic number, because the mean of its divisors is an integer number (210112050135).

Almost surely, 2^420224100269 is an apocalyptic number.

It is an amenable number.

420224100269 is a deficient number, since it is larger than the sum of its proper divisors (1).

420224100269 is an equidigital number, since it uses as much as digits as its factorization.

420224100269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 420224100269 in words is "four hundred twenty billion, two hundred twenty-four million, one hundred thousand, two hundred sixty-nine".