12021322131111 has 8 divisors (see below), whose sum is σ = 16028466798960. Its totient is φ = 8014196108672.

The previous prime is 12021322131103. The next prime is 12021322131113. The reversal of 12021322131111 is 11113122312021.

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 12021322131111 - 2³ = 12021322131103 is a prime.

It is a super-2 number, since 2×12021322131111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021322131113) 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, 3080370 + ... + 5790623.

It is an arithmetic number, because the mean of its divisors is an integer number (2003558349870).

Almost surely, 2^{12021322131111} is an apocalyptic number.

12021322131111 is a deficient number, since it is larger than the sum of its proper divisors (4007144667849).

12021322131111 is an equidigital number, since it uses as much as digits as its factorization.

12021322131111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9322705.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12021322131111 its reverse (11113122312021), we get a palindrome (23134444443132).

The spelling of 12021322131111 in words is "twelve trillion, twenty-one billion, three hundred twenty-two million, one hundred thirty-one thousand, one hundred eleven".