22011221311123 has 16 divisors (see below), whose sum is σ = 24897981652992. Its totient is φ = 19277873496000.

The previous prime is 22011221311067. The next prime is 22011221311159. The reversal of 22011221311123 is 32111312211022.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22011221311123 is a prime.

It is a super-2 number, since 2×22011221311123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22011221311094 and 22011221311103.

It is not an unprimeable number, because it can be changed into a prime (22011221311423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144652738 + ... + 144804823.

It is an arithmetic number, because the mean of its divisors is an integer number (1556123853312).

Almost surely, 2^{22011221311123} is an apocalyptic number.

22011221311123 is a deficient number, since it is larger than the sum of its proper divisors (2886760341869).

22011221311123 is a wasteful number, since it uses less digits than its factorization.

22011221311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289457826.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 22011221311123 its reverse (32111312211022), we get a palindrome (54122533522145).

The spelling of 22011221311123 in words is "twenty-two trillion, eleven billion, two hundred twenty-one million, three hundred eleven thousand, one hundred twenty-three".