12021131023111 has 8 divisors (see below), whose sum is σ = 13825941414560. Its totient is φ = 10238197121568.

The previous prime is 12021131023081. The next prime is 12021131023127. The reversal of 12021131023111 is 11132013112021.

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 12021131023111 - 2¹⁵ = 12021130990343 is a prime.

It is a super-2 number, since 2×12021131023111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021131023171) 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, 5469121296 + ... + 5469123493.

It is an arithmetic number, because the mean of its divisors is an integer number (1728242676820).

Almost surely, 2^{12021131023111} is an apocalyptic number.

12021131023111 is a deficient number, since it is larger than the sum of its proper divisors (1804810391449).

12021131023111 is a wasteful number, since it uses less digits than its factorization.

12021131023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10938244953.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12021131023111 its reverse (11132013112021), we get a palindrome (23153144135132).

The spelling of 12021131023111 in words is "twelve trillion, twenty-one billion, one hundred thirty-one million, twenty-three thousand, one hundred eleven".