12021022202021 has 8 divisors (see below), whose sum is σ = 13738694388480. Its totient is φ = 10303445840688.

The previous prime is 12021022202017. The next prime is 12021022202047. The reversal of 12021022202021 is 12020222012021.

It is a happy number.

12021022202021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12021022202021 - 2² = 12021022202017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021022222021) 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, 23687261 + ... + 24189426.

It is an arithmetic number, because the mean of its divisors is an integer number (1717336798560).

Almost surely, 2^{12021022202021} is an apocalyptic number.

It is an amenable number.

12021022202021 is a deficient number, since it is larger than the sum of its proper divisors (1717672186459).

12021022202021 is an equidigital number, since it uses as much as digits as its factorization.

12021022202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47912563.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12021022202021 its reverse (12020222012021), we get a palindrome (24041244214042).

The spelling of 12021022202021 in words is "twelve trillion, twenty-one billion, twenty-two million, two hundred two thousand, twenty-one".