11221012222 has 8 divisors (see below), whose sum is σ = 19236020976. Its totient is φ = 4809005232.

The previous prime is 11221012219. The next prime is 11221012223. The reversal of 11221012222 is 22221012211.

It is a happy number.

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

It is a super-2 number, since 2×11221012222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11221012196 and 11221012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221012223) 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, 400750423 + ... + 400750450.

It is an arithmetic number, because the mean of its divisors is an integer number (2404502622).

Almost surely, 2^11221012222 is an apocalyptic number.

11221012222 is a deficient number, since it is larger than the sum of its proper divisors (8015008754).

11221012222 is an equidigital number, since it uses as much as digits as its factorization.

11221012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801500882.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11221012222 its reverse (22221012211), we get a palindrome (33442024433).

The spelling of 11221012222 in words is "eleven billion, two hundred twenty-one million, twelve thousand, two hundred twenty-two".