1211100120232 has 16 divisors (see below), whose sum is σ = 2270842711200. Its totient is φ = 605542063920.

The previous prime is 1211100120221. The next prime is 1211100120233. The reversal of 1211100120232 is 2320210011121.

It is not an unprimeable number, because it can be changed into a prime (1211100120233) 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, 329394 + ... + 1590817.

It is an arithmetic number, because the mean of its divisors is an integer number (141927669450).

Almost surely, 2^{1211100120232} is an apocalyptic number.

It is an amenable number.

1211100120232 is a deficient number, since it is larger than the sum of its proper divisors (1059742590968).

1211100120232 is a wasteful number, since it uses less digits than its factorization.

1211100120232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999056 (or 1999052 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1211100120232 its reverse (2320210011121), we get a palindrome (3531310131353).

The spelling of 1211100120232 in words is "one trillion, two hundred eleven billion, one hundred million, one hundred twenty thousand, two hundred thirty-two".