12056222101 has 24 divisors (see below), whose sum is σ = 15343624800. Its totient is φ = 9367394400.

The previous prime is 12056222099. The next prime is 12056222107. The reversal of 12056222101 is 10122265021.

It is not a de Polignac number, because 12056222101 - 2¹ = 12056222099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12056222107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156066 + ... + 220156.

It is an arithmetic number, because the mean of its divisors is an integer number (639317700).

Almost surely, 2^12056222101 is an apocalyptic number.

12056222101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12056222101 is a deficient number, since it is larger than the sum of its proper divisors (3287402699).

12056222101 is a wasteful number, since it uses less digits than its factorization.

12056222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64465 (or 64458 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 12056222101 its reverse (10122265021), we get a palindrome (22178487122).

The spelling of 12056222101 in words is "twelve billion, fifty-six million, two hundred twenty-two thousand, one hundred one".