12021202212101 has 4 divisors (see below), whose sum is σ = 12021740264352. Its totient is φ = 12020664159852.

The previous prime is 12021202212091. The next prime is 12021202212121. The reversal of 12021202212101 is 10121220212021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12021202212101 - 2²² = 12021198017797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12021202212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021202212121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268992611 + ... + 269037296.

It is an arithmetic number, because the mean of its divisors is an integer number (3005435066088).

Almost surely, 2^{12021202212101} is an apocalyptic number.

It is an amenable number.

12021202212101 is a deficient number, since it is larger than the sum of its proper divisors (538052251).

12021202212101 is an equidigital number, since it uses as much as digits as its factorization.

12021202212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538052250.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12021202212101 its reverse (10121220212021), we get a palindrome (22142422424122).

The spelling of 12021202212101 in words is "twelve trillion, twenty-one billion, two hundred two million, two hundred twelve thousand, one hundred one".