20122022011111 has 4 divisors (see below), whose sum is σ = 20422350697912. Its totient is φ = 19821693324312.

The previous prime is 20122022011087. The next prime is 20122022011163. The reversal of 20122022011111 is 11111022022102.

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

It is a cyclic number.

It is not a de Polignac number, because 20122022011111 - 2¹³ = 20122022002919 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 (20122022011171) 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, 150164343300 + ... + 150164343433.

It is an arithmetic number, because the mean of its divisors is an integer number (5105587674478).

Almost surely, 2^{20122022011111} is an apocalyptic number.

20122022011111 is a deficient number, since it is larger than the sum of its proper divisors (300328686801).

20122022011111 is an equidigital number, since it uses as much as digits as its factorization.

20122022011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300328686800.

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

Adding to 20122022011111 its reverse (11111022022102), we get a palindrome (31233044033213).

The spelling of 20122022011111 in words is "twenty trillion, one hundred twenty-two billion, twenty-two million, eleven thousand, one hundred eleven".