12221111022 has 8 divisors (see below), whose sum is σ = 24442222056. Its totient is φ = 4073703672.

The previous prime is 12221111017. The next prime is 12221111027. The reversal of 12221111022 is 22011112221.

It is an interprime number because it is at equal distance from previous prime (12221111017) and next prime (12221111027).

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

12221111022 is an admirable number.

It is a super-2 number, since 2×12221111022² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221110992 and 12221111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221111027) 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, 1018425913 + ... + 1018425924.

It is an arithmetic number, because the mean of its divisors is an integer number (3055277757).

Almost surely, 2^12221111022 is an apocalyptic number.

12221111022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221111022 is a wasteful number, since it uses less digits than its factorization.

12221111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036851842.

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

Adding to 12221111022 its reverse (22011112221), we get a palindrome (34232223243).

The spelling of 12221111022 in words is "twelve billion, two hundred twenty-one million, one hundred eleven thousand, twenty-two".