12222001523 has 2 divisors, whose sum is σ = 12222001524. Its totient is φ = 12222001522.

The previous prime is 12222001513. The next prime is 12222001529. The reversal of 12222001523 is 32510022221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12222001523 - 2²² = 12217807219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12222001495 and 12222001504.

It is not a weakly prime, because it can be changed into another prime (12222001529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111000761 + 6111000762.

It is an arithmetic number, because the mean of its divisors is an integer number (6111000762).

Almost surely, 2^12222001523 is an apocalyptic number.

12222001523 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222001523 is an equidigital number, since it uses as much as digits as its factorization.

12222001523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 12222001523 its reverse (32510022221), we get a palindrome (44732023744).

The spelling of 12222001523 in words is "twelve billion, two hundred twenty-two million, one thousand, five hundred twenty-three".