2201243021 has 8 divisors (see below), whose sum is σ = 2206807680. Its totient is φ = 2195687088.

The previous prime is 2201243017. The next prime is 2201243029. The reversal of 2201243021 is 1203421022.

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 2201243021 - 2² = 2201243017 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 (2201243029) 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, 887435 + ... + 889911.

It is an arithmetic number, because the mean of its divisors is an integer number (275850960).

Almost surely, 2^2201243021 is an apocalyptic number.

It is an amenable number.

2201243021 is a deficient number, since it is larger than the sum of its proper divisors (5564659).

2201243021 is an equidigital number, since it uses as much as digits as its factorization.

2201243021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4363.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2201243021 is about 46917.4063754594. The cubic root of 2201243021 is about 1300.8363495938.

Adding to 2201243021 its reverse (1203421022), we get a palindrome (3404664043).

The spelling of 2201243021 in words is "two billion, two hundred one million, two hundred forty-three thousand, twenty-one".