212022122111 has 16 divisors (see below), whose sum is σ = 224737964640. Its totient is φ = 199669048320.

The previous prime is 212022122099. The next prime is 212022122153. The reversal of 212022122111 is 111221220212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212022122111 is a prime.

It is a super-3 number, since 3×212022122111³ (a number of 35 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 212022122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022122171) 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, 5386775 + ... + 5425991.

It is an arithmetic number, because the mean of its divisors is an integer number (14046122790).

Almost surely, 2^212022122111 is an apocalyptic number.

212022122111 is a deficient number, since it is larger than the sum of its proper divisors (12715842529).

212022122111 is a wasteful number, since it uses less digits than its factorization.

212022122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43834.

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

Adding to 212022122111 its reverse (111221220212), we get a palindrome (323243342323).

The spelling of 212022122111 in words is "two hundred twelve billion, twenty-two million, one hundred twenty-two thousand, one hundred eleven".