1202120121209 has 8 divisors (see below), whose sum is σ = 1376257616448. Its totient is φ = 1028584138320.

The previous prime is 1202120121199. The next prime is 1202120121239. The reversal of 1202120121209 is 9021210212021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202120121209 is a prime.

It is a super-3 number, since 3×1202120121209³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202120121239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150373802 + ... + 150381795.

It is an arithmetic number, because the mean of its divisors is an integer number (172032202056).

Almost surely, 2^{1202120121209} is an apocalyptic number.

It is an amenable number.

1202120121209 is a deficient number, since it is larger than the sum of its proper divisors (174137495239).

1202120121209 is an equidigital number, since it uses as much as digits as its factorization.

1202120121209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300756175.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 1202120121209 in words is "one trillion, two hundred two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred nine".