1322050661 has 2 divisors, whose sum is σ = 1322050662. Its totient is φ = 1322050660.

The previous prime is 1322050573. The next prime is 1322050669. The reversal of 1322050661 is 1660502231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1068636100 + 253414561 = 32690^2 + 15919^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322050661 - 2²² = 1317856357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1322050661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322050669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661025330 + 661025331.

It is an arithmetic number, because the mean of its divisors is an integer number (661025331).

Almost surely, 2^1322050661 is an apocalyptic number.

It is an amenable number.

1322050661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322050661 is an equidigital number, since it uses as much as digits as its factorization.

1322050661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1322050661 is about 36360.0145902061. The cubic root of 1322050661 is about 1097.5290710661.

Adding to 1322050661 its reverse (1660502231), we get a palindrome (2982552892).

The spelling of 1322050661 in words is "one billion, three hundred twenty-two million, fifty thousand, six hundred sixty-one".