111220222002120 has 448 divisors, whose sum is σ = 467777605011840. Its totient is φ = 23110695014400.

The previous prime is 111220222002119. The next prime is 111220222002139. The reversal of 111220222002120 is 21200222022111.

It is a happy number.

111220222002120 is a `hidden beast` number, since 1 + 11 + 220 + 2 + 220 + 0 + 212 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 111220222002093 and 111220222002102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 22521801 + ... + 27012440.

Almost surely, 2^{111220222002120} is an apocalyptic number.

111220222002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220222002120 is an abundant number, since it is smaller than the sum of its proper divisors (356557383009720).

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

111220222002120 is a wasteful number, since it uses less digits than its factorization.

111220222002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49534288 (or 49534269 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 111220222002120 its reverse (21200222022111), we get a palindrome (132420444024231).

The spelling of 111220222002120 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred twenty-two million, two thousand, one hundred twenty".