1211100170232 has 32 divisors (see below), whose sum is σ = 3028066819200. Its totient is φ = 403657870944.

The previous prime is 1211100170227. The next prime is 1211100170233. The reversal of 1211100170232 is 2320710011121.

It is a junction number, because it is equal to n+sod(n) for n = 1211100170199 and 1211100170208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211100170233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2401732 + ... + 2861907.

It is an arithmetic number, because the mean of its divisors is an integer number (94627088100).

Almost surely, 2^{1211100170232} is an apocalyptic number.

1211100170232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211100170232 is an abundant number, since it is smaller than the sum of its proper divisors (1816966648968).

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

1211100170232 is a wasteful number, since it uses less digits than its factorization.

1211100170232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273235 (or 5273231 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 21.

Adding to 1211100170232 its reverse (2320710011121), we get a palindrome (3531810181353).

The spelling of 1211100170232 in words is "one trillion, two hundred eleven billion, one hundred million, one hundred seventy thousand, two hundred thirty-two".