1209879179822 has 8 divisors (see below), whose sum is σ = 1877398727400. Its totient is φ = 584079604024.

The previous prime is 1209879179813. The next prime is 1209879179867. The reversal of 1209879179822 is 2289719789021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10429992872 + ... + 10429992987.

It is an arithmetic number, because the mean of its divisors is an integer number (234674840925).

Almost surely, 2^{1209879179822} is an apocalyptic number.

1209879179822 is a deficient number, since it is larger than the sum of its proper divisors (667519547578).

1209879179822 is a wasteful number, since it uses less digits than its factorization.

1209879179822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20859985890.

The product of its (nonzero) digits is 18289152, while the sum is 65.

The spelling of 1209879179822 in words is "one trillion, two hundred nine billion, eight hundred seventy-nine million, one hundred seventy-nine thousand, eight hundred twenty-two".