22012112212211 has 4 divisors (see below), whose sum is σ = 24013213322424. Its totient is φ = 20011011102000.

The previous prime is 22012112212151. The next prime is 22012112212229. The reversal of 22012112212211 is 11221221121022.

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

It is a cyclic number.

It is not a de Polignac number, because 22012112212211 - 2¹⁸ = 22012111950067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012112212411) 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, 1000550555090 + ... + 1000550555111.

It is an arithmetic number, because the mean of its divisors is an integer number (6003303330606).

Almost surely, 2^{22012112212211} is an apocalyptic number.

22012112212211 is a deficient number, since it is larger than the sum of its proper divisors (2001101110213).

22012112212211 is a wasteful number, since it uses less digits than its factorization.

22012112212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001101110212.

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

Adding to 22012112212211 its reverse (11221221121022), we get a palindrome (33233333333233).

The spelling of 22012112212211 in words is "twenty-two trillion, twelve billion, one hundred twelve million, two hundred twelve thousand, two hundred eleven".