12222221007 has 16 divisors (see below), whose sum is σ = 16504152192. Its totient is φ = 8044851360.

The previous prime is 12222220993. The next prime is 12222221027. The reversal of 12222221007 is 70012222221.

It is not a de Polignac number, because 12222221007 - 2¹² = 12222216911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222221027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1513 + ... + 156354.

It is an arithmetic number, because the mean of its divisors is an integer number (1031509512).

Almost surely, 2^12222221007 is an apocalyptic number.

12222221007 is a deficient number, since it is larger than the sum of its proper divisors (4281931185).

12222221007 is a wasteful number, since it uses less digits than its factorization.

12222221007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158198.

The product of its (nonzero) digits is 448, while the sum is 21.

Adding to 12222221007 its reverse (70012222221), we get a palindrome (82234443228).

The spelling of 12222221007 in words is "twelve billion, two hundred twenty-two million, two hundred twenty-one thousand, seven".