422445454215 has 32 divisors (see below), whose sum is σ = 687102111936. Its totient is φ = 221575618560.

The previous prime is 422445454213. The next prime is 422445454229. The reversal of 422445454215 is 512454544224.

It is not a de Polignac number, because 422445454215 - 2¹ = 422445454213 is a prime.

It is a super-2 number, since 2×422445454215² (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 (422445454213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6350869 + ... + 6417041.

It is an arithmetic number, because the mean of its divisors is an integer number (21471940998).

Almost surely, 2^422445454215 is an apocalyptic number.

422445454215 is a deficient number, since it is larger than the sum of its proper divisors (264656657721).

422445454215 is a wasteful number, since it uses less digits than its factorization.

422445454215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73219.

The product of its digits is 1024000, while the sum is 42.

Adding to 422445454215 its reverse (512454544224), we get a palindrome (934899998439).

Subtracting 422445454215 from its reverse (512454544224), we obtain a palindrome (90009090009).

The spelling of 422445454215 in words is "four hundred twenty-two billion, four hundred forty-five million, four hundred fifty-four thousand, two hundred fifteen".