122221422 has 48 divisors (see below), whose sum is σ = 269100000. Its totient is φ = 40087872.

The previous prime is 122221417. The next prime is 122221423. The reversal of 122221422 is 224122221.

122221422 is a `hidden beast` number, since 1 + 22 + 221 + 422 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122221395 and 122221404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 533604 + ... + 533832.

It is an arithmetic number, because the mean of its divisors is an integer number (5606250).

Almost surely, 2^122221422 is an apocalyptic number.

122221422 is an abundant number, since it is smaller than the sum of its proper divisors (146878578).

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

122221422 is a wasteful number, since it uses less digits than its factorization.

122221422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 582 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 122221422 is about 11055.3797763804. The cubic root of 122221422 is about 496.2674345805.

Adding to 122221422 its reverse (224122221), we get a palindrome (346343643).

The spelling of 122221422 in words is "one hundred twenty-two million, two hundred twenty-one thousand, four hundred twenty-two".