422624201421 has 16 divisors (see below), whose sum is σ = 569729668608. Its totient is φ = 278650542000.

The previous prime is 422624201383. The next prime is 422624201423. The reversal of 422624201421 is 124102426224.

It is not a de Polignac number, because 422624201421 - 2²¹ = 422622104269 is a prime.

It is a super-2 number, since 2×422624201421² (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 (422624201423) 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, 1952115 + ... + 2157776.

It is an arithmetic number, because the mean of its divisors is an integer number (35608104288).

Almost surely, 2^422624201421 is an apocalyptic number.

It is an amenable number.

422624201421 is a deficient number, since it is larger than the sum of its proper divisors (147105467187).

422624201421 is a wasteful number, since it uses less digits than its factorization.

422624201421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110272.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 422624201421 its reverse (124102426224), we get a palindrome (546726627645).

The spelling of 422624201421 in words is "four hundred twenty-two billion, six hundred twenty-four million, two hundred one thousand, four hundred twenty-one".