11112211222122 has 8 divisors (see below), whose sum is σ = 22224422444256. Its totient is φ = 3704070407372.

The previous prime is 11112211222069. The next prime is 11112211222127. The reversal of 11112211222122 is 22122211221111.

It is a sphenic number, since it is the product of 3 distinct primes.

11112211222122 is an admirable number.

It is a super-2 number, since 2×11112211222122² (a number of 27 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (11112211222127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926017601838 + ... + 926017601849.

It is an arithmetic number, because the mean of its divisors is an integer number (2778052805532).

Almost surely, 2^{11112211222122} is an apocalyptic number.

11112211222122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11112211222122 is a wasteful number, since it uses less digits than its factorization.

11112211222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852035203692.

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

Adding to 11112211222122 its reverse (22122211221111), we get a palindrome (33234422443233).

The spelling of 11112211222122 in words is "eleven trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty-two thousand, one hundred twenty-two".