111021210021222 has 12 divisors (see below), whose sum is σ = 240545955046020. Its totient is φ = 37007070007068.

The previous prime is 111021210021217. The next prime is 111021210021263. The reversal of 111021210021222 is 222120012120111.

111021210021222 is a `hidden beast` number, since 1 + 110 + 212 + 100 + 21 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6167845001179 = 111021210021222 / (1 + 1 + 1 + 0 + 2 + 1 + 2 + 1 + 0 + 0 + 2 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 111021210021195 and 111021210021204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3083922500572 + ... + 3083922500607.

It is an arithmetic number, because the mean of its divisors is an integer number (20045496253835).

Almost surely, 2^{111021210021222} is an apocalyptic number.

111021210021222 is an abundant number, since it is smaller than the sum of its proper divisors (129524745024798).

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

111021210021222 is a wasteful number, since it uses less digits than its factorization.

111021210021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6167845001187 (or 6167845001184 counting only the distinct ones).

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

Adding to 111021210021222 its reverse (222120012120111), we get a palindrome (333141222141333).

The spelling of 111021210021222 in words is "one hundred eleven trillion, twenty-one billion, two hundred ten million, twenty-one thousand, two hundred twenty-two".