400201223 has 2 divisors, whose sum is σ = 400201224. Its totient is φ = 400201222.

The previous prime is 400201163. The next prime is 400201229. The reversal of 400201223 is 322102004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400201223 - 2⁶ = 400201159 is a prime.

It is a super-2 number, since 2×400201223² = 320322037781391458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400201198 and 400201207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400201229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200100611 + 200100612.

It is an arithmetic number, because the mean of its divisors is an integer number (200100612).

Almost surely, 2^400201223 is an apocalyptic number.

400201223 is a deficient number, since it is larger than the sum of its proper divisors (1).

400201223 is an equidigital number, since it uses as much as digits as its factorization.

400201223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 400201223 is about 20005.0299424920. The cubic root of 400201223 is about 736.9298309943.

Adding to 400201223 its reverse (322102004), we get a palindrome (722303227).

The spelling of 400201223 in words is "four hundred million, two hundred one thousand, two hundred twenty-three".