122120312 has 32 divisors (see below), whose sum is σ = 232437600. Its totient is φ = 60144000.

The previous prime is 122120311. The next prime is 122120329. The reversal of 122120312 is 213021221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120311) 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, 289862 + ... + 290282.

It is an arithmetic number, because the mean of its divisors is an integer number (7263675).

Almost surely, 2^122120312 is an apocalyptic number.

It is an amenable number.

122120312 is a deficient number, since it is larger than the sum of its proper divisors (110317288).

122120312 is a wasteful number, since it uses less digits than its factorization.

122120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 122120312 is about 11050.8059434595. The cubic root of 122120312 is about 496.1305479293.

Adding to 122120312 its reverse (213021221), we get a palindrome (335141533).

Subtracting 122120312 from its reverse (213021221), we obtain a palindrome (90900909).

The spelling of 122120312 in words is "one hundred twenty-two million, one hundred twenty thousand, three hundred twelve".