2122012201211 has 4 divisors (see below), whose sum is σ = 2425156801392. Its totient is φ = 1818867601032.

The previous prime is 2122012201201. The next prime is 2122012201223. The reversal of 2122012201211 is 1121022102212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122012201211 is a prime.

It is a super-3 number, since 3×2122012201211³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122012201211.

It is not an unprimeable number, because it can be changed into a prime (2122012201201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151572300080 + ... + 151572300093.

It is an arithmetic number, because the mean of its divisors is an integer number (606289200348).

Almost surely, 2^{2122012201211} is an apocalyptic number.

2122012201211 is a deficient number, since it is larger than the sum of its proper divisors (303144600181).

2122012201211 is an equidigital number, since it uses as much as digits as its factorization.

2122012201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303144600180.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2122012201211 its reverse (1121022102212), we get a palindrome (3243034303423).

The spelling of 2122012201211 in words is "two trillion, one hundred twenty-two billion, twelve million, two hundred one thousand, two hundred eleven".