1212226323166 has 4 divisors (see below), whose sum is σ = 1818339484752. Its totient is φ = 606113161582.

The previous prime is 1212226323131. The next prime is 1212226323179. The reversal of 1212226323166 is 6613236222121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303056580790 + ... + 303056580793.

It is an arithmetic number, because the mean of its divisors is an integer number (454584871188).

Almost surely, 2^{1212226323166} is an apocalyptic number.

1212226323166 is a deficient number, since it is larger than the sum of its proper divisors (606113161586).

1212226323166 is an equidigital number, since it uses as much as digits as its factorization.

1212226323166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606113161585.

The product of its digits is 62208, while the sum is 37.

The spelling of 1212226323166 in words is "one trillion, two hundred twelve billion, two hundred twenty-six million, three hundred twenty-three thousand, one hundred sixty-six".