111012001222120 has 16 divisors (see below), whose sum is σ = 249777002749860. Its totient is φ = 44404800488832.

The previous prime is 111012001222051. The next prime is 111012001222121. The reversal of 111012001222120 is 21222100210111.

It can be written as a sum of positive squares in 2 ways, for example, as 110863083955716 + 148917266404 = 10529154^2 + 385898^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111012001222094 and 111012001222103.

It is not an unprimeable number, because it can be changed into a prime (111012001222121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387650015237 + ... + 1387650015316.

Almost surely, 2^{111012001222120} is an apocalyptic number.

111012001222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111012001222120 is an abundant number, since it is smaller than the sum of its proper divisors (138765001527740).

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

111012001222120 is a wasteful number, since it uses less digits than its factorization.

111012001222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775300030564 (or 2775300030560 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111012001222120 its reverse (21222100210111), we get a palindrome (132234101432231).

The spelling of 111012001222120 in words is "one hundred eleven trillion, twelve billion, one million, two hundred twenty-two thousand, one hundred twenty".