422122722 has 32 divisors (see below), whose sum is σ = 995979264. Its totient is φ = 116715600.

The previous prime is 422122697. The next prime is 422122747. The reversal of 422122722 is 227221224.

It is an interprime number because it is at equal distance from previous prime (422122697) and next prime (422122747).

It is a junction number, because it is equal to n+sod(n) for n = 422122692 and 422122701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160804 + ... + 163407.

It is an arithmetic number, because the mean of its divisors is an integer number (31124352).

Almost surely, 2^422122722 is an apocalyptic number.

422122722 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

422122722 is an abundant number, since it is smaller than the sum of its proper divisors (573856542).

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

422122722 is a wasteful number, since it uses less digits than its factorization.

422122722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324254.

The product of its digits is 1792, while the sum is 24.

The square root of 422122722 is about 20545.6253737870. The cubic root of 422122722 is about 750.1467694986.

Adding to 422122722 its reverse (227221224), we get a palindrome (649343946).

The spelling of 422122722 in words is "four hundred twenty-two million, one hundred twenty-two thousand, seven hundred twenty-two".