12121102219999 has 16 divisors (see below), whose sum is σ = 12836970881280. Its totient is φ = 11413237988160.

The previous prime is 12121102219957. The next prime is 12121102220039. The reversal of 12121102219999 is 99991220112121.

It is a cyclic number.

It is not a de Polignac number, because 12121102219999 - 2²¹ = 12121100122847 is a prime.

It is a super-2 number, since 2×12121102219999² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121102213999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905334 + ... + 5006179.

It is an arithmetic number, because the mean of its divisors is an integer number (802310680080).

Almost surely, 2^{12121102219999} is an apocalyptic number.

12121102219999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12121102219999 is a deficient number, since it is larger than the sum of its proper divisors (715868661281).

12121102219999 is a wasteful number, since it uses less digits than its factorization.

12121102219999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5912190.

The product of its (nonzero) digits is 104976, while the sum is 49.

The spelling of 12121102219999 in words is "twelve trillion, one hundred twenty-one billion, one hundred two million, two hundred nineteen thousand, nine hundred ninety-nine".