12021222012011 has 8 divisors (see below), whose sum is σ = 12653960354880. Its totient is φ = 11388487913928.

The previous prime is 12021222011969. The next prime is 12021222012031. The reversal of 12021222012011 is 11021022212021.

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

It is a cyclic number.

It is not a de Polignac number, because 12021222012011 - 2³⁰ = 12020148270187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021222012031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5934380 + ... + 7698006.

It is an arithmetic number, because the mean of its divisors is an integer number (1581745044360).

Almost surely, 2^{12021222012011} is an apocalyptic number.

12021222012011 is a deficient number, since it is larger than the sum of its proper divisors (632738342869).

12021222012011 is a wasteful number, since it uses less digits than its factorization.

12021222012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122393.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12021222012011 its reverse (11021022212021), we get a palindrome (23042244224032).

The spelling of 12021222012011 in words is "twelve trillion, twenty-one billion, two hundred twenty-two million, twelve thousand, eleven".