22012212210211 has 4 divisors (see below), whose sum is σ = 22013956593400. Its totient is φ = 22010467827024.

The previous prime is 22012212210143. The next prime is 22012212210271. The reversal of 22012212210211 is 11201221221022.

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 22012212210211 - 2¹¹ = 22012212208163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012212210271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872172666 + ... + 872197903.

It is an arithmetic number, because the mean of its divisors is an integer number (5503489148350).

Almost surely, 2^{22012212210211} is an apocalyptic number.

22012212210211 is a deficient number, since it is larger than the sum of its proper divisors (1744383189).

22012212210211 is a wasteful number, since it uses less digits than its factorization.

22012212210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744383188.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22012212210211 its reverse (11201221221022), we get a palindrome (33213433431233).

It can be divided in two parts, 2201221221021 and 1, that added together give a palindrome (2201221221022).

The spelling of 22012212210211 in words is "twenty-two trillion, twelve billion, two hundred twelve million, two hundred ten thousand, two hundred eleven".