22011211211 has 8 divisors (see below), whose sum is σ = 24017435904. Its totient is φ = 20005854120.

The previous prime is 22011211199. The next prime is 22011211231. The reversal of 22011211211 is 11211211022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22011211211 - 2¹⁴ = 22011194827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22011211231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163271 + ... + 265856.

It is an arithmetic number, because the mean of its divisors is an integer number (3002179488).

Almost surely, 2^22011211211 is an apocalyptic number.

22011211211 is a deficient number, since it is larger than the sum of its proper divisors (2006224693).

22011211211 is a wasteful number, since it uses less digits than its factorization.

22011211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433801.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22011211211 its reverse (11211211022), we get a palindrome (33222422233).

The spelling of 22011211211 in words is "twenty-two billion, eleven million, two hundred eleven thousand, two hundred eleven".