111211210022122 has 8 divisors (see below), whose sum is σ = 190647788609376. Its totient is φ = 47661947152332.

The previous prime is 111211210022119. The next prime is 111211210022179. The reversal of 111211210022122 is 221220012112111.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 111211210022122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3971828929348 + ... + 3971828929375.

It is an arithmetic number, because the mean of its divisors is an integer number (23830973576172).

Almost surely, 2^{111211210022122} is an apocalyptic number.

111211210022122 is a deficient number, since it is larger than the sum of its proper divisors (79436578587254).

111211210022122 is an equidigital number, since it uses as much as digits as its factorization.

111211210022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943657858732.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111211210022122 its reverse (221220012112111), we get a palindrome (332431222134233).

The spelling of 111211210022122 in words is "one hundred eleven trillion, two hundred eleven billion, two hundred ten million, twenty-two thousand, one hundred twenty-two".