422401421022 has 64 divisors (see below), whose sum is σ = 1016457254400. Its totient is φ = 114316997760.

The previous prime is 422401421017. The next prime is 422401421033. The reversal of 422401421022 is 220124104224.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 422401420983 and 422401421001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5796372 + ... + 5868792.

It is an arithmetic number, because the mean of its divisors is an integer number (15882144600).

Almost surely, 2^422401421022 is an apocalyptic number.

422401421022 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

422401421022 is an abundant number, since it is smaller than the sum of its proper divisors (594055833378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422401421022 is a wasteful number, since it uses less digits than its factorization.

422401421022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79761.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 422401421022 its reverse (220124104224), we get a palindrome (642525525246).

The spelling of 422401421022 in words is "four hundred twenty-two billion, four hundred one million, four hundred twenty-one thousand, twenty-two".