12222251205 has 16 divisors (see below), whose sum is σ = 19735013760. Its totient is φ = 6458730048.

The previous prime is 12222251183. The next prime is 12222251233. The reversal of 12222251205 is 50215222221.

It is not a de Polignac number, because 12222251205 - 2⁷ = 12222251077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3736057 + ... + 3739326.

It is an arithmetic number, because the mean of its divisors is an integer number (1233438360).

Almost surely, 2^12222251205 is an apocalyptic number.

12222251205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12222251205 is a deficient number, since it is larger than the sum of its proper divisors (7512762555).

12222251205 is a wasteful number, since it uses less digits than its factorization.

12222251205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7475500.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 12222251205 its reverse (50215222221), we get a palindrome (62437473426).

The spelling of 12222251205 in words is "twelve billion, two hundred twenty-two million, two hundred fifty-one thousand, two hundred five".