2112202121111 has 16 divisors (see below), whose sum is σ = 2122261440768. Its totient is φ = 2102170056000.

The previous prime is 2112202121069. The next prime is 2112202121171. The reversal of 2112202121111 is 1111212022112.

It is a cyclic number.

It is not a de Polignac number, because 2112202121111 - 2¹⁰ = 2112202120087 is a prime.

It is a super-2 number, since 2×2112202121111² (a number of 25 digits) contains 22 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 2112202121111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112202121171) 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, 551055251 + ... + 551059083.

It is an arithmetic number, because the mean of its divisors is an integer number (132641340048).

Almost surely, 2^{2112202121111} is an apocalyptic number.

2112202121111 is a deficient number, since it is larger than the sum of its proper divisors (10059319657).

2112202121111 is a wasteful number, since it uses less digits than its factorization.

2112202121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2112202121111 its reverse (1111212022112), we get a palindrome (3223414143223).

The spelling of 2112202121111 in words is "two trillion, one hundred twelve billion, two hundred two million, one hundred twenty-one thousand, one hundred eleven".