121321112 has 32 divisors (see below), whose sum is σ = 262757520. Its totient is φ = 51901440.

The previous prime is 121321097. The next prime is 121321127. The reversal of 121321112 is 211123121.

It is an interprime number because it is at equal distance from previous prime (121321097) and next prime (121321127).

It is a congruent number.

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, 39053 + ... + 42044.

Almost surely, 2^121321112 is an apocalyptic number.

It is an amenable number.

121321112 is an abundant number, since it is smaller than the sum of its proper divisors (141436408).

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

121321112 is a wasteful number, since it uses less digits than its factorization.

121321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81131 (or 81127 counting only the distinct ones).

The product of its digits is 24, while the sum is 14.

The square root of 121321112 is about 11014.5863290457. The cubic root of 121321112 is about 495.0458917422.

Adding to 121321112 its reverse (211123121), we get a palindrome (332444233).

The spelling of 121321112 in words is "one hundred twenty-one million, three hundred twenty-one thousand, one hundred twelve".