111220120321332 has 192 divisors, whose sum is σ = 299349267840000. Its totient is φ = 31785626880000.

The previous prime is 111220120321309. The next prime is 111220120321337. The reversal of 111220120321332 is 233123021022111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220120321337) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 501737482 + ... + 501959102.

It is an arithmetic number, because the mean of its divisors is an integer number (1559110770000).

Almost surely, 2^{111220120321332} is an apocalyptic number.

111220120321332 is a gapful number since it is divisible by the number (12) 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 111220120321332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149674633920000).

111220120321332 is an abundant number, since it is smaller than the sum of its proper divisors (188129147518668).

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

111220120321332 is a wasteful number, since it uses less digits than its factorization.

111220120321332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222558 (or 222556 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 111220120321332 its reverse (233123021022111), we get a palindrome (344343141343443).

The spelling of 111220120321332 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred twenty million, three hundred twenty-one thousand, three hundred thirty-two".