22121101211222 has 16 divisors (see below), whose sum is σ = 35738222345952. Its totient is φ = 10208557370880.

The previous prime is 22121101211201. The next prime is 22121101211233. The reversal of 22121101211222 is 22211210112122.

It is a junction number, because it is equal to n+sod(n) for n = 22121101211194 and 22121101211203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49006418 + ... + 49455749.

It is an arithmetic number, because the mean of its divisors is an integer number (2233638896622).

Almost surely, 2^{22121101211222} is an apocalyptic number.

22121101211222 is a deficient number, since it is larger than the sum of its proper divisors (13617121134730).

22121101211222 is a wasteful number, since it uses less digits than its factorization.

22121101211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98470823.

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

Adding to 22121101211222 its reverse (22211210112122), we get a palindrome (44332311323344).

The spelling of 22121101211222 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred one million, two hundred eleven thousand, two hundred twenty-two".