12001022012021 has 8 divisors (see below), whose sum is σ = 13715732546304. Its totient is φ = 10286381182320.

The previous prime is 12001022011999. The next prime is 12001022012051. The reversal of 12001022012021 is 12021022010021.

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 12001022012021 - 2³⁰ = 11999948270197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001022011987 and 12001022012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001022012051) 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, 17056685 + ... + 17746338.

It is an arithmetic number, because the mean of its divisors is an integer number (1714466568288).

Almost surely, 2^{12001022012021} is an apocalyptic number.

It is an amenable number.

12001022012021 is a deficient number, since it is larger than the sum of its proper divisors (1714710534283).

12001022012021 is an equidigital number, since it uses as much as digits as its factorization.

12001022012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34852291.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12001022012021 its reverse (12021022010021), we get a palindrome (24022044022042).

It can be divided in two parts, 1200102 and 2012021, that added together give a palindrome (3212123).

The spelling of 12001022012021 in words is "twelve trillion, one billion, twenty-two million, twelve thousand, twenty-one".