111120121022120 has 384 divisors, whose sum is σ = 295319309594400. Its totient is φ = 37515934826496.

The previous prime is 111120121022087. The next prime is 111120121022147. The reversal of 111120121022120 is 21220121021111.

It can be written as a sum of positive squares in 16 ways, for example, as 3495306941476 + 107624814080644 = 1869574^2 + 10374238^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 58824838136 + ... + 58824840024.

Almost surely, 2^{111120121022120} is an apocalyptic number.

111120121022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111120121022120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147659654797200).

111120121022120 is an abundant number, since it is smaller than the sum of its proper divisors (184199188572280).

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

111120121022120 is a wasteful number, since it uses less digits than its factorization.

111120121022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405 (or 3394 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111120121022120 its reverse (21220121021111), we get a palindrome (132340242043231).

The spelling of 111120121022120 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred twenty-one million, twenty-two thousand, one hundred twenty".