111222121332 has 48 divisors (see below), whose sum is σ = 296716492800. Its totient is φ = 31764445152.

The previous prime is 111222121313. The next prime is 111222121349. The reversal of 111222121332 is 233121222111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 111222121299 and 111222121308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74448 + ... + 477479.

It is an arithmetic number, because the mean of its divisors is an integer number (6181593600).

Almost surely, 2^111222121332 is an apocalyptic number.

111222121332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111222121332 is an abundant number, since it is smaller than the sum of its proper divisors (185494371468).

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

111222121332 is a wasteful number, since it uses less digits than its factorization.

111222121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554340 (or 554338 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

Adding to 111222121332 its reverse (233121222111), we get a palindrome (344343343443).

The spelling of 111222121332 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, three hundred thirty-two".