1211120332120 has 16 divisors (see below), whose sum is σ = 2725020747360. Its totient is φ = 484448132832.

The previous prime is 1211120332111. The next prime is 1211120332127. The reversal of 1211120332120 is 212330211121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211120332127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15139004112 + ... + 15139004191.

It is an arithmetic number, because the mean of its divisors is an integer number (170313796710).

Almost surely, 2^{1211120332120} is an apocalyptic number.

1211120332120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211120332120 is an abundant number, since it is smaller than the sum of its proper divisors (1513900415240).

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

1211120332120 is a wasteful number, since it uses less digits than its factorization.

1211120332120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30278008314 (or 30278008310 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1211120332120 its reverse (212330211121), we get a palindrome (1423450543241).

The spelling of 1211120332120 in words is "one trillion, two hundred eleven billion, one hundred twenty million, three hundred thirty-two thousand, one hundred twenty".