11222012211 has 4 divisors (see below), whose sum is σ = 14962682952. Its totient is φ = 7481341472.

The previous prime is 11222012201. The next prime is 11222012303. The reversal of 11222012211 is 11221022211.

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 11222012211 - 2¹⁹ = 11221487923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11222012201) 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, 1870335366 + ... + 1870335371.

It is an arithmetic number, because the mean of its divisors is an integer number (3740670738).

Almost surely, 2^11222012211 is an apocalyptic number.

11222012211 is a deficient number, since it is larger than the sum of its proper divisors (3740670741).

11222012211 is an equidigital number, since it uses as much as digits as its factorization.

11222012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740670740.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11222012211 its reverse (11221022211), we get a palindrome (22443034422).

The spelling of 11222012211 in words is "eleven billion, two hundred twenty-two million, twelve thousand, two hundred eleven".