121442212 has 12 divisors (see below), whose sum is σ = 213087280. Its totient is φ = 60560136.

The previous prime is 121442201. The next prime is 121442213. The reversal of 121442212 is 212244121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121442212.

It is not an unprimeable number, because it can be changed into a prime (121442213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38538 + ... + 41569.

Almost surely, 2^121442212 is an apocalyptic number.

It is an amenable number.

121442212 is a deficient number, since it is larger than the sum of its proper divisors (91645068).

121442212 is a wasteful number, since it uses less digits than its factorization.

121442212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80490 (or 80488 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 121442212 is about 11020.0822138494. The cubic root of 121442212 is about 495.2105515189.

Adding to 121442212 its reverse (212244121), we get a palindrome (333686333).

The spelling of 121442212 in words is "one hundred twenty-one million, four hundred forty-two thousand, two hundred twelve".