3622342640221 has 2 divisors, whose sum is σ = 3622342640222. Its totient is φ = 3622342640220.

The previous prime is 3622342640201. The next prime is 3622342640251. The reversal of 3622342640221 is 1220462432263.

3622342640221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2883241356121 + 739101284100 = 1698011^2 + 859710^2 .

It is a cyclic number.

It is not a de Polignac number, because 3622342640221 - 2⁹ = 3622342639709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3622342640201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1811171320110 + 1811171320111.

It is an arithmetic number, because the mean of its divisors is an integer number (1811171320111).

Almost surely, 2^{3622342640221} is an apocalyptic number.

It is an amenable number.

3622342640221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3622342640221 is an equidigital number, since it uses as much as digits as its factorization.

3622342640221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 37.

The spelling of 3622342640221 in words is "three trillion, six hundred twenty-two billion, three hundred forty-two million, six hundred forty thousand, two hundred twenty-one".