11402222112121 has 2 divisors, whose sum is σ = 11402222112122. Its totient is φ = 11402222112120.

The previous prime is 11402222112077. The next prime is 11402222112167. The reversal of 11402222112121 is 12121122220411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7466009760000 + 3936212352121 = 2732400^2 + 1983989^2 .

It is a cyclic number.

It is not a de Polignac number, because 11402222112121 - 2²⁹ = 11401685241209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11402222112092 and 11402222112101.

It is not a weakly prime, because it can be changed into another prime (11402222112181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5701111056060 + 5701111056061.

It is an arithmetic number, because the mean of its divisors is an integer number (5701111056061).

Almost surely, 2^{11402222112121} is an apocalyptic number.

It is an amenable number.

11402222112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11402222112121 is an equidigital number, since it uses as much as digits as its factorization.

11402222112121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 11402222112121 its reverse (12121122220411), we get a palindrome (23523344332532).

The spelling of 11402222112121 in words is "eleven trillion, four hundred two billion, two hundred twenty-two million, one hundred twelve thousand, one hundred twenty-one".