1211209999914 has 16 divisors (see below), whose sum is σ = 2505951724320. Its totient is φ = 389814712560.

The previous prime is 1211209999913. The next prime is 1211209999921. The reversal of 1211209999914 is 4199999021121.

It is not an unprimeable number, because it can be changed into a prime (1211209999913) 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, 3480488332 + ... + 3480488679.

It is an arithmetic number, because the mean of its divisors is an integer number (156621982770).

Almost surely, 2^{1211209999914} is an apocalyptic number.

1211209999914 is an abundant number, since it is smaller than the sum of its proper divisors (1294741724406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211209999914 is a wasteful number, since it uses less digits than its factorization.

1211209999914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6960977045.

The product of its (nonzero) digits is 944784, while the sum is 57.

The spelling of 1211209999914 in words is "one trillion, two hundred eleven billion, two hundred nine million, nine hundred ninety-nine thousand, nine hundred fourteen".