1212122011099 has 8 divisors (see below), whose sum is σ = 1277985857040. Its totient is φ = 1146464960256.

The previous prime is 1212122011063. The next prime is 1212122011117. The reversal of 1212122011099 is 9901102212121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212122011099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212122011099.

It is not an unprimeable number, because it can be changed into a prime (1212122012099) 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 7 ways as a sum of consecutive naturals, for example, 51686734 + ... + 51710179.

It is an arithmetic number, because the mean of its divisors is an integer number (159748232130).

Almost surely, 2^{1212122011099} is an apocalyptic number.

1212122011099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1212122011099 is a deficient number, since it is larger than the sum of its proper divisors (65863845941).

1212122011099 is a wasteful number, since it uses less digits than its factorization.

1212122011099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103397549.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 1212122011099 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, eleven thousand, ninety-nine".