1209193820122 has 48 divisors (see below), whose sum is σ = 1886405944896. Its totient is φ = 581287795200.

The previous prime is 1209193820101. The next prime is 1209193820129. The reversal of 1209193820122 is 2210283919021.

It is not an unprimeable number, because it can be changed into a prime (1209193820129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358703097 + ... + 358706467.

It is an arithmetic number, because the mean of its divisors is an integer number (39300123852).

Almost surely, 2^{1209193820122} is an apocalyptic number.

1209193820122 is a deficient number, since it is larger than the sum of its proper divisors (677212124774).

1209193820122 is a wasteful number, since it uses less digits than its factorization.

1209193820122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595 (or 4564 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 1209193820122 in words is "one trillion, two hundred nine billion, one hundred ninety-three million, eight hundred twenty thousand, one hundred twenty-two".