11221013211 has 8 divisors (see below), whose sum is σ = 14980126224. Its totient is φ = 7471287840.

The previous prime is 11221013201. The next prime is 11221013227. The reversal of 11221013211 is 11231012211.

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

It is not a de Polignac number, because 11221013211 - 2¹¹ = 11221011163 is a prime.

It is a super-2 number, since 2×11221013211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11221013201) 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, 2344120 + ... + 2348901.

It is an arithmetic number, because the mean of its divisors is an integer number (1872515778).

Almost surely, 2^11221013211 is an apocalyptic number.

11221013211 is a deficient number, since it is larger than the sum of its proper divisors (3759113013).

11221013211 is an equidigital number, since it uses as much as digits as its factorization.

11221013211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693821.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11221013211 its reverse (11231012211), we get a palindrome (22452025422).

The spelling of 11221013211 in words is "eleven billion, two hundred twenty-one million, thirteen thousand, two hundred eleven".