122212122 has 16 divisors (see below), whose sum is σ = 245128800. Its totient is φ = 40619952.

The previous prime is 122212093. The next prime is 122212141. The reversal of 122212122 is 221212221.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27088 + ... + 31275.

It is an arithmetic number, because the mean of its divisors is an integer number (15320550).

Almost surely, 2^122212122 is an apocalyptic number.

122212122 is an abundant number, since it is smaller than the sum of its proper divisors (122916678).

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

122212122 is a wasteful number, since it uses less digits than its factorization.

122212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58717.

The product of its digits is 64, while the sum is 15.

The square root of 122212122 is about 11054.9591586763. The cubic root of 122212122 is about 496.2548470320.

Adding to 122212122 its reverse (221212221), we get a palindrome (343424343).

Subtracting 122212122 from its reverse (221212221), we obtain a palindrome (99000099).

The spelling of 122212122 in words is "one hundred twenty-two million, two hundred twelve thousand, one hundred twenty-two".