11000201221957 has 2 divisors, whose sum is σ = 11000201221958. Its totient is φ = 11000201221956.

The previous prime is 11000201221949. The next prime is 11000201222039. The reversal of 11000201221957 is 75912210200011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7419909050401 + 3580292171556 = 2723951^2 + 1892166^2 .

It is a cyclic number.

It is not a de Polignac number, because 11000201221957 - 2³ = 11000201221949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11000201221907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500100610978 + 5500100610979.

It is an arithmetic number, because the mean of its divisors is an integer number (5500100610979).

Almost surely, 2^{11000201221957} is an apocalyptic number.

It is an amenable number.

11000201221957 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000201221957 is an equidigital number, since it uses as much as digits as its factorization.

11000201221957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 31.

Adding to 11000201221957 its reverse (75912210200011), we get a palindrome (86912411421968).

The spelling of 11000201221957 in words is "eleven trillion, two hundred one million, two hundred twenty-one thousand, nine hundred fifty-seven".