2122001212111 has 8 divisors (see below), whose sum is σ = 2314922610384. Its totient is φ = 1929081846720.

The previous prime is 2122001212109. The next prime is 2122001212159. The reversal of 2122001212111 is 1112121002212.

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

It is a cyclic number.

It is not a de Polignac number, because 2122001212111 - 2¹ = 2122001212109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122007212111) 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, 2395915 + ... + 3159811.

It is an arithmetic number, because the mean of its divisors is an integer number (289365326298).

Almost surely, 2^{2122001212111} is an apocalyptic number.

2122001212111 is a deficient number, since it is larger than the sum of its proper divisors (192921398273).

2122001212111 is a wasteful number, since it uses less digits than its factorization.

2122001212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016441.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2122001212111 its reverse (1112121002212), we get a palindrome (3234122214323).

The spelling of 2122001212111 in words is "two trillion, one hundred twenty-two billion, one million, two hundred twelve thousand, one hundred eleven".