12121011210099 has 16 divisors (see below), whose sum is σ = 17630904259584. Its totient is φ = 7345924692000.

The previous prime is 12121011210043. The next prime is 12121011210101. The reversal of 12121011210099 is 99001211012121.

It is not a de Polignac number, because 12121011210099 - 2⁷ = 12121011209971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121011280099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1830627 + ... + 5252924.

It is an arithmetic number, because the mean of its divisors is an integer number (1101931516224).

Almost surely, 2^{12121011210099} is an apocalyptic number.

12121011210099 is a deficient number, since it is larger than the sum of its proper divisors (5509893049485).

12121011210099 is a wasteful number, since it uses less digits than its factorization.

12121011210099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7135418.

The product of its (nonzero) digits is 648, while the sum is 30.

The spelling of 12121011210099 in words is "twelve trillion, one hundred twenty-one billion, eleven million, two hundred ten thousand, ninety-nine".