22201112112122 has 4 divisors (see below), whose sum is σ = 33301668168186. Its totient is φ = 11100556056060.

The previous prime is 22201112112043. The next prime is 22201112112139. The reversal of 22201112112122 is 22121121110222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22182131263681 + 18980848441 = 4709791^2 + 137771^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22201112112094 and 22201112112103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550278028029 + ... + 5550278028032.

Almost surely, 2^{22201112112122} is an apocalyptic number.

22201112112122 is a deficient number, since it is larger than the sum of its proper divisors (11100556056064).

22201112112122 is a wasteful number, since it uses less digits than its factorization.

22201112112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100556056063.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22201112112122 its reverse (22121121110222), we get a palindrome (44322233222344).

The spelling of 22201112112122 in words is "twenty-two trillion, two hundred one billion, one hundred twelve million, one hundred twelve thousand, one hundred twenty-two".