11221121111023 has 2 divisors, whose sum is σ = 11221121111024. Its totient is φ = 11221121111022.

The previous prime is 11221121110981. The next prime is 11221121111041. The reversal of 11221121111023 is 32011112112211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221121111023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221121111063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610560555511 + 5610560555512.

It is an arithmetic number, because the mean of its divisors is an integer number (5610560555512).

Almost surely, 2^{11221121111023} is an apocalyptic number.

11221121111023 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221121111023 is an equidigital number, since it uses as much as digits as its factorization.

11221121111023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 11221121111023 its reverse (32011112112211), we get a palindrome (43232233223234).

The spelling of 11221121111023 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred eleven thousand, twenty-three".