12022121011 has 8 divisors (see below), whose sum is σ = 12243528864. Its totient is φ = 11801497920.

The previous prime is 12022121003. The next prime is 12022121053. The reversal of 12022121011 is 11012122021.

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 12022121011 - 2³ = 12022121003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022120982 and 12022121000.

It is not an unprimeable number, because it can be changed into a prime (12022121411) 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, 165226 + ... + 226591.

It is an arithmetic number, because the mean of its divisors is an integer number (1530441108).

Almost surely, 2^12022121011 is an apocalyptic number.

12022121011 is a deficient number, since it is larger than the sum of its proper divisors (221407853).

12022121011 is an equidigital number, since it uses as much as digits as its factorization.

12022121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392381.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12022121011 its reverse (11012122021), we get a palindrome (23034243032).

The spelling of 12022121011 in words is "twelve billion, twenty-two million, one hundred twenty-one thousand, eleven".