122113212 has 24 divisors (see below), whose sum is σ = 306848976. Its totient is φ = 37573248.

The previous prime is 122113207. The next prime is 122113213. The reversal of 122113212 is 212311221.

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

It is a junction number, because it is equal to n+sod(n) for n = 122113191 and 122113200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122113213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391233 + ... + 391544.

It is an arithmetic number, because the mean of its divisors is an integer number (12785374).

Almost surely, 2^122113212 is an apocalyptic number.

122113212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122113212 is an abundant number, since it is smaller than the sum of its proper divisors (184735764).

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

122113212 is a wasteful number, since it uses less digits than its factorization.

122113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782797 (or 782795 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 122113212 is about 11050.4846952521. The cubic root of 122113212 is about 496.1209328345.

Adding to 122113212 its reverse (212311221), we get a palindrome (334424433).

It can be divided in two parts, 1221132 and 12, that multiplied together give a square (14653584 = 3828²).

The spelling of 122113212 in words is "one hundred twenty-two million, one hundred thirteen thousand, two hundred twelve".