12222311020 has 24 divisors (see below), whose sum is σ = 25669030464. Its totient is φ = 4888509696.

The previous prime is 12222310981. The next prime is 12222311033. The reversal of 12222311020 is 2011322221.

It is a happy number.

It is a super-2 number, since 2×12222311020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12222310985 and 12222311003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345684 + ... + 379396.

It is an arithmetic number, because the mean of its divisors is an integer number (1069542936).

Almost surely, 2^12222311020 is an apocalyptic number.

12222311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222311020 is an abundant number, since it is smaller than the sum of its proper divisors (13446719444).

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

12222311020 is a wasteful number, since it uses less digits than its factorization.

12222311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51849 (or 51847 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12222311020 its reverse (2011322221), we get a palindrome (14233633241).

The spelling of 12222311020 in words is "twelve billion, two hundred twenty-two million, three hundred eleven thousand, twenty".