11212010122122 has 12 divisors (see below), whose sum is σ = 24292688597970. Its totient is φ = 3737336707368.

The previous prime is 11212010122099. The next prime is 11212010122129. The reversal of 11212010122122 is 22122101021211.

It can be written as a sum of positive squares in only one way, i.e., 10346959455561 + 865050666561 = 3216669^2 + 930081^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 622889451229 = 11212010122122 / (1 + 1 + 2 + 1 + 2 + 0 + 1 + 0 + 1 + 2 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 11212010122095 and 11212010122104.

It is not an unprimeable number, because it can be changed into a prime (11212010122129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311444725597 + ... + 311444725632.

Almost surely, 2^{11212010122122} is an apocalyptic number.

11212010122122 is an abundant number, since it is smaller than the sum of its proper divisors (13080678475848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11212010122122 is a wasteful number, since it uses less digits than its factorization.

11212010122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622889451237 (or 622889451234 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11212010122122 its reverse (22122101021211), we get a palindrome (33334111143333).

The spelling of 11212010122122 in words is "eleven trillion, two hundred twelve billion, ten million, one hundred twenty-two thousand, one hundred twenty-two".