11212122012222 has 32 divisors (see below), whose sum is σ = 23002774389504. Its totient is φ = 3641203051200.

The previous prime is 11212122012193. The next prime is 11212122012253. The reversal of 11212122012222 is 22221022121211.

It is a super-2 number, since 2×11212122012222² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 31167604 + ... + 31525287.

It is an arithmetic number, because the mean of its divisors is an integer number (718836699672).

Almost surely, 2^{11212122012222} is an apocalyptic number.

11212122012222 is an abundant number, since it is smaller than the sum of its proper divisors (11790652377282).

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

11212122012222 is a wasteful number, since it uses less digits than its factorization.

11212122012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62693664.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11212122012222 its reverse (22221022121211), we get a palindrome (33433144133433).

The spelling of 11212122012222 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-two million, twelve thousand, two hundred twenty-two".