422204400421 has 16 divisors (see below), whose sum is σ = 434814912000. Its totient is φ = 409809254400.

The previous prime is 422204400419. The next prime is 422204400437. The reversal of 422204400421 is 124004402224.

It is a cyclic number.

It is not a de Polignac number, because 422204400421 - 2¹ = 422204400419 is a prime.

It is a super-2 number, since 2×422204400421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422204400451) 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, 1849701 + ... + 2065381.

It is an arithmetic number, because the mean of its divisors is an integer number (27175932000).

Almost surely, 2^422204400421 is an apocalyptic number.

It is an amenable number.

422204400421 is a deficient number, since it is larger than the sum of its proper divisors (12610511579).

422204400421 is a wasteful number, since it uses less digits than its factorization.

422204400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216180.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 422204400421 its reverse (124004402224), we get a palindrome (546208802645).

The spelling of 422204400421 in words is "four hundred twenty-two billion, two hundred four million, four hundred thousand, four hundred twenty-one".