111120210222021 has 48 divisors (see below), whose sum is σ = 215505862266240. Its totient is φ = 53284416485760.

The previous prime is 111120210222013. The next prime is 111120210222053. The reversal of 111120210222021 is 120222012021111.

111120210222021 is a `hidden beast` number, since 111 + 120 + 210 + 2 + 220 + 2 + 1 = 666.

It is not a de Polignac number, because 111120210222021 - 2³ = 111120210222013 is a prime.

It is a super-2 number, since 2×111120210222021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111120210221985 and 111120210222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120210222011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6167168826 + ... + 6167186843.

It is an arithmetic number, because the mean of its divisors is an integer number (4489705463880).

Almost surely, 2^{111120210222021} is an apocalyptic number.

111120210222021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111120210222021 is a deficient number, since it is larger than the sum of its proper divisors (104385652044219).

111120210222021 is a wasteful number, since it uses less digits than its factorization.

111120210222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12334355706 (or 12334355703 counting only the distinct ones).

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

Adding to 111120210222021 its reverse (120222012021111), we get a palindrome (231342222243132).

The spelling of 111120210222021 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred ten million, two hundred twenty-two thousand, twenty-one".