111212110022 has 8 divisors (see below), whose sum is σ = 179650331616. Its totient is φ = 51328666152.

The previous prime is 111212110021. The next prime is 111212110027. The reversal of 111212110022 is 220011212111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 111212109979 and 111212110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111212110021) 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, 2138694398 + ... + 2138694449.

It is an arithmetic number, because the mean of its divisors is an integer number (22456291452).

Almost surely, 2^111212110022 is an apocalyptic number.

111212110022 is a deficient number, since it is larger than the sum of its proper divisors (68438221594).

111212110022 is a wasteful number, since it uses less digits than its factorization.

111212110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277388862.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111212110022 its reverse (220011212111), we get a palindrome (331223322133).

The spelling of 111212110022 in words is "one hundred eleven billion, two hundred twelve million, one hundred ten thousand, twenty-two".