2022121111 has 4 divisors (see below), whose sum is σ = 2022215752. Its totient is φ = 2022026472.

The previous prime is 2022121093. The next prime is 2022121121. The reversal of 2022121111 is 1111212202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2022121111 - 2⁹ = 2022120599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2022121091 and 2022121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022121121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1561 + ... + 63613.

It is an arithmetic number, because the mean of its divisors is an integer number (505553938).

Almost surely, 2^2022121111 is an apocalyptic number.

2022121111 is a deficient number, since it is larger than the sum of its proper divisors (94641).

2022121111 is an equidigital number, since it uses as much as digits as its factorization.

2022121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94640.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2022121111 is about 44968.0009673546. Note that the first 3 decimals coincide. The cubic root of 2022121111 is about 1264.5491706414.

Adding to 2022121111 its reverse (1111212202), we get a palindrome (3133333313).

The spelling of 2022121111 in words is "two billion, twenty-two million, one hundred twenty-one thousand, one hundred eleven".