2201012211221 has 8 divisors (see below), whose sum is σ = 2316869050080. Its totient is φ = 2085156781488.

The previous prime is 2201012211161. The next prime is 2201012211239. The reversal of 2201012211221 is 1221122101022.

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 2201012211221 - 2¹⁰ = 2201012210197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2201012211221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201012211521) 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, 4745555 + ... + 5188671.

It is an arithmetic number, because the mean of its divisors is an integer number (289608631260).

Almost surely, 2^{2201012211221} is an apocalyptic number.

It is an amenable number.

2201012211221 is a deficient number, since it is larger than the sum of its proper divisors (115856838859).

2201012211221 is a wasteful number, since it uses less digits than its factorization.

2201012211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704563.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2201012211221 its reverse (1221122101022), we get a palindrome (3422134312243).

The spelling of 2201012211221 in words is "two trillion, two hundred one billion, twelve million, two hundred eleven thousand, two hundred twenty-one".