11221010222222 has 4 divisors (see below), whose sum is σ = 16831515333336. Its totient is φ = 5610505111110.

The previous prime is 11221010222221. The next prime is 11221010222243. The reversal of 11221010222222 is 22222201012211.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11221010222222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11221010222194 and 11221010222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221010222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805252555554 + ... + 2805252555557.

It is an arithmetic number, because the mean of its divisors is an integer number (4207878833334).

Almost surely, 2^{11221010222222} is an apocalyptic number.

11221010222222 is a deficient number, since it is larger than the sum of its proper divisors (5610505111114).

11221010222222 is an equidigital number, since it uses as much as digits as its factorization.

11221010222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610505111113.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11221010222222 its reverse (22222201012211), we get a palindrome (33443211234433).

The spelling of 11221010222222 in words is "eleven trillion, two hundred twenty-one billion, ten million, two hundred twenty-two thousand, two hundred twenty-two".