11822122111012 has 24 divisors (see below), whose sum is σ = 21431443645080. Its totient is φ = 5702092323840.

The previous prime is 11822122111003. The next prime is 11822122111013. The reversal of 11822122111012 is 21011122122811.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1243456930816 + 10578665180196 = 1115104^2 + 3252486^2 .

It is not an unprimeable number, because it can be changed into a prime (11822122111013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404963553 + ... + 404992744.

It is an arithmetic number, because the mean of its divisors is an integer number (892976818545).

Almost surely, 2^{11822122111012} is an apocalyptic number.

It is an amenable number.

11822122111012 is a deficient number, since it is larger than the sum of its proper divisors (9609321534068).

11822122111012 is a wasteful number, since it uses less digits than its factorization.

11822122111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809956431 (or 809956429 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 25.

Adding to 11822122111012 its reverse (21011122122811), we get a palindrome (32833244233823).

The spelling of 11822122111012 in words is "eleven trillion, eight hundred twenty-two billion, one hundred twenty-two million, one hundred eleven thousand, twelve".