401462221 has 2 divisors, whose sum is σ = 401462222. Its totient is φ = 401462220.

The previous prime is 401462209. The next prime is 401462231. The reversal of 401462221 is 122264104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242424900 + 159037321 = 15570^2 + 12611^2 .

It is a cyclic number.

It is not a de Polignac number, because 401462221 - 2⁷ = 401462093 is a prime.

It is a super-2 number, since 2×401462221² = 322343829780505682, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 401462192 and 401462201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401462231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200731110 + 200731111.

It is an arithmetic number, because the mean of its divisors is an integer number (200731111).

Almost surely, 2^401462221 is an apocalyptic number.

It is an amenable number.

401462221 is a deficient number, since it is larger than the sum of its proper divisors (1).

401462221 is an equidigital number, since it uses as much as digits as its factorization.

401462221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 401462221 is about 20036.5221782624. The cubic root of 401462221 is about 737.7030193159.

The spelling of 401462221 in words is "four hundred one million, four hundred sixty-two thousand, two hundred twenty-one".