12021000023011 has 8 divisors (see below), whose sum is σ = 13745871777024. Its totient is φ = 10298024778120.

The previous prime is 12021000022957. The next prime is 12021000023027. The reversal of 12021000023011 is 11032000012021.

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 12021000023011 - 2¹⁹ = 12020999498723 is a prime.

It is a super-2 number, since 2×12021000023011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12021000022982 and 12021000023000.

It is not an unprimeable number, because it can be changed into a prime (12021000023411) 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, 474113695 + ... + 474139048.

It is an arithmetic number, because the mean of its divisors is an integer number (1718233972128).

Almost surely, 2^{12021000023011} is an apocalyptic number.

12021000023011 is a deficient number, since it is larger than the sum of its proper divisors (1724871754013).

12021000023011 is an equidigital number, since it uses as much as digits as its factorization.

12021000023011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948254561.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12021000023011 its reverse (11032000012021), we get a palindrome (23053000035032).

The spelling of 12021000023011 in words is "twelve trillion, twenty-one billion, twenty-three thousand, eleven".