11122221503 has 2 divisors, whose sum is σ = 11122221504. Its totient is φ = 11122221502.

The previous prime is 11122221449. The next prime is 11122221529. The reversal of 11122221503 is 30512222111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11122221503 - 2⁸ = 11122221247 is a prime.

It is a super-2 number, since 2×11122221503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122221533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561110751 + 5561110752.

It is an arithmetic number, because the mean of its divisors is an integer number (5561110752).

Almost surely, 2^11122221503 is an apocalyptic number.

11122221503 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122221503 is an equidigital number, since it uses as much as digits as its factorization.

11122221503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 11122221503 its reverse (30512222111), we get a palindrome (41634443614).

The spelling of 11122221503 in words is "eleven billion, one hundred twenty-two million, two hundred twenty-one thousand, five hundred three".