12021111110122 has 8 divisors (see below), whose sum is σ = 18044076625956. Its totient is φ = 6006418901472.

The previous prime is 12021111110117. The next prime is 12021111110131. The reversal of 12021111110122 is 22101111112021.

It can be written as a sum of positive squares in 2 ways, for example, as 10100389528321 + 1920721581801 = 3178111^2 + 1385901^2 .

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

It is a super-2 number, since 2×12021111110122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12021111110096 and 12021111110105.

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, 2068323163 + ... + 2068328974.

Almost surely, 2^{12021111110122} is an apocalyptic number.

12021111110122 is a deficient number, since it is larger than the sum of its proper divisors (6022965515834).

12021111110122 is a wasteful number, since it uses less digits than its factorization.

12021111110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136653592.

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

Adding to 12021111110122 its reverse (22101111112021), we get a palindrome (34122222222143).

The spelling of 12021111110122 in words is "twelve trillion, twenty-one billion, one hundred eleven million, one hundred ten thousand, one hundred twenty-two".