201200122122221 has 8 divisors (see below), whose sum is σ = 201236041944000. Its totient is φ = 201164203429920.

The previous prime is 201200122122173. The next prime is 201200122122247. The reversal of 201200122122221 is 122221221002102.

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

It is a cyclic number.

It is not a de Polignac number, because 201200122122221 - 2⁶ = 201200122122157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201200122122193 and 201200122122202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200122122721) 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, 408149990 + ... + 408642648.

It is an arithmetic number, because the mean of its divisors is an integer number (25154505243000).

Almost surely, 2^{201200122122221} is an apocalyptic number.

It is an amenable number.

201200122122221 is a deficient number, since it is larger than the sum of its proper divisors (35919821779).

201200122122221 is an equidigital number, since it uses as much as digits as its factorization.

201200122122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564739.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 201200122122221 its reverse (122221221002102), we get a palindrome (323421343124323).

The spelling of 201200122122221 in words is "two hundred one trillion, two hundred billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-one".