22012112220211 has 4 divisors (see below), whose sum is σ = 22049232140232. Its totient is φ = 21974992300192.

The previous prime is 22012112220199. The next prime is 22012112220229. The reversal of 22012112220211 is 11202221121022.

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 22012112220211 - 2²³ = 22012103831603 is a prime.

It is a super-3 number, since 3×22012112220211³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012112220281) 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, 18559959121 + ... + 18559960306.

It is an arithmetic number, because the mean of its divisors is an integer number (5512308035058).

Almost surely, 2^{22012112220211} is an apocalyptic number.

22012112220211 is a deficient number, since it is larger than the sum of its proper divisors (37119920021).

22012112220211 is an equidigital number, since it uses as much as digits as its factorization.

22012112220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37119920020.

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

Adding to 22012112220211 its reverse (11202221121022), we get a palindrome (33214333341233).

The spelling of 22012112220211 in words is "twenty-two trillion, twelve billion, one hundred twelve million, two hundred twenty thousand, two hundred eleven".