122213312 has 28 divisors (see below), whose sum is σ = 261173976. Its totient is φ = 56405760.

The previous prime is 122213309. The next prime is 122213321. The reversal of 122213312 is 213312221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72614 + ... + 74277.

It is an arithmetic number, because the mean of its divisors is an integer number (9327642).

Almost surely, 2^122213312 is an apocalyptic number.

It is an amenable number.

122213312 is an abundant number, since it is smaller than the sum of its proper divisors (138960664).

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

122213312 is a wasteful number, since it uses less digits than its factorization.

122213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146916 (or 146906 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 122213312 is about 11055.0129805442. The cubic root of 122213312 is about 496.2564577325.

Adding to 122213312 its reverse (213312221), we get a palindrome (335525533).

The spelling of 122213312 in words is "one hundred twenty-two million, two hundred thirteen thousand, three hundred twelve".