111021120022212 has 96 divisors (see below), whose sum is σ = 289061181964800. Its totient is φ = 36849154500000.

The previous prime is 111021120022181. The next prime is 111021120022217. The reversal of 111021120022212 is 212220021120111.

111021120022212 is a `hidden beast` number, since 11 + 10 + 211 + 200 + 22 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (111021120022217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95356587 + ... + 96513837.

It is an arithmetic number, because the mean of its divisors is an integer number (3011053978800).

Almost surely, 2^{111021120022212} is an apocalyptic number.

111021120022212 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 111021120022212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144530590982400).

111021120022212 is an abundant number, since it is smaller than the sum of its proper divisors (178040061942588).

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

111021120022212 is a wasteful number, since it uses less digits than its factorization.

111021120022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161054 (or 1161046 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111021120022212 its reverse (212220021120111), we get a palindrome (323241141142323).

The spelling of 111021120022212 in words is "one hundred eleven trillion, twenty-one billion, one hundred twenty million, twenty-two thousand, two hundred twelve".