11022222100121 has 2 divisors, whose sum is σ = 11022222100122. Its totient is φ = 11022222100120.

The previous prime is 11022222100039. The next prime is 11022222100133. The reversal of 11022222100121 is 12100122222011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10464416265625 + 557805834496 = 3234875^2 + 746864^2 .

It is a cyclic number.

It is not a de Polignac number, because 11022222100121 - 2²⁶ = 11022154991257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11022222100121.

It is not a weakly prime, because it can be changed into another prime (11022222100171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511111050060 + 5511111050061.

It is an arithmetic number, because the mean of its divisors is an integer number (5511111050061).

Almost surely, 2^{11022222100121} is an apocalyptic number.

It is an amenable number.

11022222100121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022222100121 is an equidigital number, since it uses as much as digits as its factorization.

11022222100121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11022222100121 its reverse (12100122222011), we get a palindrome (23122344322132).

The spelling of 11022222100121 in words is "eleven trillion, twenty-two billion, two hundred twenty-two million, one hundred thousand, one hundred twenty-one".