122100312 has 32 divisors (see below), whose sum is σ = 305542080. Its totient is φ = 40661280.

The previous prime is 122100301. The next prime is 122100317. The reversal of 122100312 is 213001221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35083 + ... + 38405.

It is an arithmetic number, because the mean of its divisors is an integer number (9548190).

Almost surely, 2^122100312 is an apocalyptic number.

122100312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122100312 is an abundant number, since it is smaller than the sum of its proper divisors (183441768).

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

122100312 is a wasteful number, since it uses less digits than its factorization.

122100312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4863 (or 4859 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 122100312 is about 11049.9009950316. The cubic root of 122100312 is about 496.1034622012.

Adding to 122100312 its reverse (213001221), we get a palindrome (335101533).

Subtracting 122100312 from its reverse (213001221), we obtain a palindrome (90900909).

The spelling of 122100312 in words is "one hundred twenty-two million, one hundred thousand, three hundred twelve".