201222002221221 has 8 divisors (see below), whose sum is σ = 268420156604224. Its totient is φ = 134085924659520.

The previous prime is 201222002221213. The next prime is 201222002221231. The reversal of 201222002221221 is 122122200222102.

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

It is not a de Polignac number, because 201222002221221 - 2³ = 201222002221213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222002221231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15519197761 + ... + 15519210726.

It is an arithmetic number, because the mean of its divisors is an integer number (33552519575528).

Almost surely, 2^{201222002221221} is an apocalyptic number.

It is an amenable number.

201222002221221 is a deficient number, since it is larger than the sum of its proper divisors (67198154383003).

201222002221221 is a wasteful number, since it uses less digits than its factorization.

201222002221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31038410651.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 201222002221221 its reverse (122122200222102), we get a palindrome (323344202443323).

The spelling of 201222002221221 in words is "two hundred one trillion, two hundred twenty-two billion, two million, two hundred twenty-one thousand, two hundred twenty-one".