2200321021 has 2 divisors, whose sum is σ = 2200321022. Its totient is φ = 2200321020.

The previous prime is 2200321009. The next prime is 2200321037. The reversal of 2200321021 is 1201230022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2148322500 + 51998521 = 46350^2 + 7211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200321021 - 2⁵ = 2200320989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2200320992 and 2200321010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2200321091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100160510 + 1100160511.

It is an arithmetic number, because the mean of its divisors is an integer number (1100160511).

Almost surely, 2^2200321021 is an apocalyptic number.

It is an amenable number.

2200321021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200321021 is an equidigital number, since it uses as much as digits as its factorization.

2200321021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2200321021 is about 46907.5795687648. The cubic root of 2200321021 is about 1300.6547039515.

Adding to 2200321021 its reverse (1201230022), we get a palindrome (3401551043).

Subtracting from 2200321021 its reverse (1201230022), we obtain a palindrome (999090999).

The spelling of 2200321021 in words is "two billion, two hundred million, three hundred twenty-one thousand, twenty-one".