12220322055 has 32 divisors (see below), whose sum is σ = 20588083200. Its totient is φ = 6172532352.

The previous prime is 12220322053. The next prime is 12220322137. The reversal of 12220322055 is 55022302221.

It is not a de Polignac number, because 12220322055 - 2¹ = 12220322053 is a prime.

It is a super-2 number, since 2×12220322055² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220322053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1445581 + ... + 1454009.

It is an arithmetic number, because the mean of its divisors is an integer number (643377600).

Almost surely, 2^12220322055 is an apocalyptic number.

12220322055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12220322055 is a deficient number, since it is larger than the sum of its proper divisors (8367761145).

12220322055 is a wasteful number, since it uses less digits than its factorization.

12220322055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13543.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 12220322055 its reverse (55022302221), we get a palindrome (67242624276).

The spelling of 12220322055 in words is "twelve billion, two hundred twenty million, three hundred twenty-two thousand, fifty-five".