12161222246 has 16 divisors (see below), whose sum is σ = 18747603600. Its totient is φ = 5913256608.

The previous prime is 12161222189. The next prime is 12161222273. The reversal of 12161222246 is 64222216121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289061 + ... + 328448.

It is an arithmetic number, because the mean of its divisors is an integer number (1171725225).

Almost surely, 2^12161222246 is an apocalyptic number.

12161222246 is a deficient number, since it is larger than the sum of its proper divisors (6586381354).

12161222246 is a wasteful number, since it uses less digits than its factorization.

12161222246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617783.

The product of its digits is 4608, while the sum is 29.

Adding to 12161222246 its reverse (64222216121), we get a palindrome (76383438367).

The spelling of 12161222246 in words is "twelve billion, one hundred sixty-one million, two hundred twenty-two thousand, two hundred forty-six".