221422001223701 has 2 divisors, whose sum is σ = 221422001223702. Its totient is φ = 221422001223700.

The previous prime is 221422001223667. The next prime is 221422001223707. The reversal of 221422001223701 is 107322100224122.

221422001223701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141101850676900 + 80320150546801 = 11878630^2 + 8962151^2 .

It is a cyclic number.

It is not a de Polignac number, because 221422001223701 - 2³⁰ = 221420927481877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221422001223707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110711000611850 + 110711000611851.

It is an arithmetic number, because the mean of its divisors is an integer number (110711000611851).

Almost surely, 2^{221422001223701} is an apocalyptic number.

It is an amenable number.

221422001223701 is a deficient number, since it is larger than the sum of its proper divisors (1).

221422001223701 is an equidigital number, since it uses as much as digits as its factorization.

221422001223701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 221422001223701 its reverse (107322100224122), we get a palindrome (328744101447823).

The spelling of 221422001223701 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, one million, two hundred twenty-three thousand, seven hundred one".