422461221 has 16 divisors (see below), whose sum is σ = 693270144. Its totient is φ = 222836544.

The previous prime is 422461199. The next prime is 422461229. The reversal of 422461221 is 122164224.

It is a happy number.

It is not a de Polignac number, because 422461221 - 2⁶ = 422461157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422461191 and 422461200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422461229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 773466 + ... + 774011.

It is an arithmetic number, because the mean of its divisors is an integer number (43329384).

Almost surely, 2^422461221 is an apocalyptic number.

It is an amenable number.

422461221 is a deficient number, since it is larger than the sum of its proper divisors (270808923).

422461221 is a wasteful number, since it uses less digits than its factorization.

422461221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547500.

The product of its digits is 1536, while the sum is 24.

The square root of 422461221 is about 20553.8614620222. The cubic root of 422461221 is about 750.3472294397.

The spelling of 422461221 in words is "four hundred twenty-two million, four hundred sixty-one thousand, two hundred twenty-one".