55222279112 has 324 divisors, whose sum is σ = 145107049185. Its totient is φ = 19620881280.

The previous prime is 55222279087. The next prime is 55222279237. The reversal of 55222279112 is 21197222255.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 47216682436 + 8005596676 = 217294^2 + 89474^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166166.

It is a super-2 number, since 2×55222279112² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 in 80 ways as a sum of consecutive naturals, for example, 665328623 + ... + 665328705.

Almost surely, 2^55222279112 is an apocalyptic number.

55222279112 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55222279112

55222279112 is an abundant number, since it is smaller than the sum of its proper divisors (89884770073).

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

55222279112 is a wasteful number, since it uses less digits than its factorization.

55222279112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 116 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The spelling of 55222279112 in words is "fifty-five billion, two hundred twenty-two million, two hundred seventy-nine thousand, one hundred twelve".