2122021201209 has 64 divisors (see below), whose sum is σ = 3629787549696. Its totient is φ = 1072801407744.

The previous prime is 2122021201199. The next prime is 2122021201217. The reversal of 2122021201209 is 9021021202212.

It is not a de Polignac number, because 2122021201209 - 2¹² = 2122021197113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122021201229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 890997 + ... + 2244530.

It is an arithmetic number, because the mean of its divisors is an integer number (56715430464).

Almost surely, 2^{2122021201209} is an apocalyptic number.

It is an amenable number.

2122021201209 is a deficient number, since it is larger than the sum of its proper divisors (1507766348487).

2122021201209 is a wasteful number, since it uses less digits than its factorization.

2122021201209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135654.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 2122021201209 in words is "two trillion, one hundred twenty-two billion, twenty-one million, two hundred one thousand, two hundred nine".