2002201201221 has 8 divisors (see below), whose sum is σ = 2874955571040. Its totient is φ = 1232123816112.

The previous prime is 2002201201193. The next prime is 2002201201277. The reversal of 2002201201221 is 1221021022002.

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

It is not a de Polignac number, because 2002201201221 - 2³⁷ = 1864762247749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002201201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002201201291) 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, 25669246131 + ... + 25669246208.

It is an arithmetic number, because the mean of its divisors is an integer number (359369446380).

Almost surely, 2^{2002201201221} is an apocalyptic number.

It is an amenable number.

2002201201221 is a deficient number, since it is larger than the sum of its proper divisors (872754369819).

2002201201221 is a wasteful number, since it uses less digits than its factorization.

2002201201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51338492355.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2002201201221 its reverse (1221021022002), we get a palindrome (3223222223223).

The spelling of 2002201201221 in words is "two trillion, two billion, two hundred one million, two hundred one thousand, two hundred twenty-one".