1202021101209 has 16 divisors (see below), whose sum is σ = 1637526159360. Its totient is φ = 783946961040.

The previous prime is 1202021101201. The next prime is 1202021101247. The reversal of 1202021101209 is 9021011202021.

It is not a de Polignac number, because 1202021101209 - 2³ = 1202021101201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1202021101201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1588047 + ... + 2219444.

It is an arithmetic number, because the mean of its divisors is an integer number (102345384960).

Almost surely, 2^{1202021101209} is an apocalyptic number.

It is an amenable number.

1202021101209 is a deficient number, since it is larger than the sum of its proper divisors (435505058151).

1202021101209 is a wasteful number, since it uses less digits than its factorization.

1202021101209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3809780.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 1202021101209 in words is "one trillion, two hundred two billion, twenty-one million, one hundred one thousand, two hundred nine".