12012121199 has 8 divisors (see below), whose sum is σ = 12937351392. Its totient is φ = 11087065440.

The previous prime is 12012121109. The next prime is 12012121201. The reversal of 12012121199 is 99112121021.

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 12012121199 - 2¹⁶ = 12012055663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012121109) 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, 123029 + ... + 197889.

It is an arithmetic number, because the mean of its divisors is an integer number (1617168924).

Almost surely, 2^12012121199 is an apocalyptic number.

12012121199 is a deficient number, since it is larger than the sum of its proper divisors (925230193).

12012121199 is a wasteful number, since it uses less digits than its factorization.

12012121199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87217.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 12012121199 in words is "twelve billion, twelve million, one hundred twenty-one thousand, one hundred ninety-nine".