12212121499 has 8 divisors (see below), whose sum is σ = 12319580160. Its totient is φ = 12104839656.

The previous prime is 12212121497. The next prime is 12212121521. The reversal of 12212121499 is 99412121221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12212121499 - 2¹ = 12212121497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212121491) 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, 96492 + ... + 183670.

It is an arithmetic number, because the mean of its divisors is an integer number (1539947520).

Almost surely, 2^12212121499 is an apocalyptic number.

12212121499 is a deficient number, since it is larger than the sum of its proper divisors (107458661).

12212121499 is a wasteful number, since it uses less digits than its factorization.

12212121499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88409.

The product of its digits is 5184, while the sum is 34.

The spelling of 12212121499 in words is "twelve billion, two hundred twelve million, one hundred twenty-one thousand, four hundred ninety-nine".