2201031320021 has 8 divisors (see below), whose sum is σ = 2226049643160. Its totient is φ = 2176019388928.

The previous prime is 2201031320003. The next prime is 2201031320069. The reversal of 2201031320021 is 1200231301022.

It can be written as a sum of positive squares in 4 ways, for example, as 885062500 + 2200146257521 = 29750^2 + 1483289^2 .

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 2201031320021 - 2⁶ = 2201031319957 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 (2201031320071) 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, 903716 + ... + 2284461.

It is an arithmetic number, because the mean of its divisors is an integer number (278256205395).

Almost surely, 2^{2201031320021} is an apocalyptic number.

It is an amenable number.

2201031320021 is a deficient number, since it is larger than the sum of its proper divisors (25018323139).

2201031320021 is an equidigital number, since it uses as much as digits as its factorization.

2201031320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196023.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2201031320021 its reverse (1200231301022), we get a palindrome (3401262621043).

The spelling of 2201031320021 in words is "two trillion, two hundred one billion, thirty-one million, three hundred twenty thousand, twenty-one".