2201200211221 has 16 divisors (see below), whose sum is σ = 2453627635200. Its totient is φ = 1957708883520.

The previous prime is 2201200211173. The next prime is 2201200211261. The reversal of 2201200211221 is 1221120021022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2201200211221 - 2²⁷ = 2201065993493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201200211195 and 2201200211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201200211261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5205765 + ... + 5612698.

It is an arithmetic number, because the mean of its divisors is an integer number (153351727200).

Almost surely, 2^{2201200211221} is an apocalyptic number.

It is an amenable number.

2201200211221 is a deficient number, since it is larger than the sum of its proper divisors (252427423979).

2201200211221 is a wasteful number, since it uses less digits than its factorization.

2201200211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10818876.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2201200211221 its reverse (1221120021022), we get a palindrome (3422320232243).

The spelling of 2201200211221 in words is "two trillion, two hundred one billion, two hundred million, two hundred eleven thousand, two hundred twenty-one".