22111012222222 has 64 divisors (see below), whose sum is σ = 42964786506240. Its totient is φ = 8280980265600.

The previous prime is 22111012222213. The next prime is 22111012222223. The reversal of 22111012222222 is 22222221011122.

It is a super-2 number, since 2×22111012222222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 22111012222193 and 22111012222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111012222223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9891429 + ... + 11918992.

It is an arithmetic number, because the mean of its divisors is an integer number (671324789160).

Almost surely, 2^{22111012222222} is an apocalyptic number.

22111012222222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22111012222222 is a deficient number, since it is larger than the sum of its proper divisors (20853774284018).

22111012222222 is a wasteful number, since it uses less digits than its factorization.

22111012222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21810697.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22111012222222 its reverse (22222221011122), we get a palindrome (44333233233344).

The spelling of 22111012222222 in words is "twenty-two trillion, one hundred eleven billion, twelve million, two hundred twenty-two thousand, two hundred twenty-two".