1211209902332 has 12 divisors (see below), whose sum is σ = 2187992081856. Its totient is φ = 586069307520.

The previous prime is 1211209902307. The next prime is 1211209902337. The reversal of 1211209902332 is 2332099021121.

It is a junction number, because it is equal to n+sod(n) for n = 1211209902292 and 1211209902301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211209902337) 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 3 ways as a sum of consecutive naturals, for example, 4883910773 + ... + 4883911020.

It is an arithmetic number, because the mean of its divisors is an integer number (182332673488).

Almost surely, 2^{1211209902332} is an apocalyptic number.

It is an amenable number.

1211209902332 is a deficient number, since it is larger than the sum of its proper divisors (976782179524).

1211209902332 is a wasteful number, since it uses less digits than its factorization.

1211209902332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9767821828 (or 9767821826 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 1211209902332 in words is "one trillion, two hundred eleven billion, two hundred nine million, nine hundred two thousand, three hundred thirty-two".