2201001022321 has 4 divisors (see below), whose sum is σ = 2201103145332. Its totient is φ = 2200898899312.

The previous prime is 2201001022291. The next prime is 2201001022343. The reversal of 2201001022321 is 1232201001022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 340262222400 + 1860738799921 = 583320^2 + 1364089^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201001022321 - 2¹⁵ = 2201000989553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201001022295 and 2201001022304.

It is not an unprimeable number, because it can be changed into a prime (2201001022351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51029170 + ... + 51072283.

It is an arithmetic number, because the mean of its divisors is an integer number (550275786333).

Almost surely, 2^{2201001022321} is an apocalyptic number.

It is an amenable number.

2201001022321 is a deficient number, since it is larger than the sum of its proper divisors (102123011).

2201001022321 is a wasteful number, since it uses less digits than its factorization.

2201001022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102123010.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2201001022321 its reverse (1232201001022), we get a palindrome (3433202023343).

It can be divided in two parts, 220100 and 1022321, that added together give a palindrome (1242421).

The spelling of 2201001022321 in words is "two trillion, two hundred one billion, one million, twenty-two thousand, three hundred twenty-one".