12011021012122 has 16 divisors (see below), whose sum is σ = 20688840021600. Its totient is φ = 5172210005040.

The previous prime is 12011021012087. The next prime is 12011021012131. The reversal of 12011021012122 is 22121012011021.

It is a junction number, because it is equal to n+sod(n) for n = 12011021012096 and 12011021012105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14367249597 + ... + 14367250432.

It is an arithmetic number, because the mean of its divisors is an integer number (1293052501350).

Almost surely, 2^{12011021012122} is an apocalyptic number.

12011021012122 is a deficient number, since it is larger than the sum of its proper divisors (8677819009478).

12011021012122 is a wasteful number, since it uses less digits than its factorization.

12011021012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28734500061.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12011021012122 its reverse (22121012011021), we get a palindrome (34132033023143).

The spelling of 12011021012122 in words is "twelve trillion, eleven billion, twenty-one million, twelve thousand, one hundred twenty-two".