11212211212122 has 32 divisors (see below), whose sum is σ = 22448505024000. Its totient is φ = 3733391720448.

The previous prime is 11212211212091. The next prime is 11212211212199. The reversal of 11212211212122 is 22121211221211.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25689879 + ... + 26122677.

It is an arithmetic number, because the mean of its divisors is an integer number (701515782000).

Almost surely, 2^{11212211212122} is an apocalyptic number.

11212211212122 is an abundant number, since it is smaller than the sum of its proper divisors (11236293811878).

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

11212211212122 is a wasteful number, since it uses less digits than its factorization.

11212211212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437430.

The product of its digits is 128, while the sum is 21.

Adding to 11212211212122 its reverse (22121211221211), we get a palindrome (33333422433333).

The spelling of 11212211212122 in words is "eleven trillion, two hundred twelve billion, two hundred eleven million, two hundred twelve thousand, one hundred twenty-two".