12202001002021 has 4 divisors (see below), whose sum is σ = 12209182876000. Its totient is φ = 12194819128044.

The previous prime is 12202001001997. The next prime is 12202001002043. The reversal of 12202001002021 is 12020010020221.

It is a happy number.

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 12202001002021 - 2¹³ = 12202000993829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202001001992 and 12202001002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202001002091) 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, 3590934441 + ... + 3590937838.

It is an arithmetic number, because the mean of its divisors is an integer number (3052295719000).

Almost surely, 2^{12202001002021} is an apocalyptic number.

It is an amenable number.

12202001002021 is a deficient number, since it is larger than the sum of its proper divisors (7181873979).

12202001002021 is an equidigital number, since it uses as much as digits as its factorization.

12202001002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7181873978.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12202001002021 its reverse (12020010020221), we get a palindrome (24222011022242).

It can be divided in two parts, 1 and 2202001002021, that added together give a palindrome (2202001002022).

The spelling of 12202001002021 in words is "twelve trillion, two hundred two billion, one million, two thousand, twenty-one".