20122020222111 has 24 divisors (see below), whose sum is σ = 29159504799984. Its totient is φ = 13371189321600.

The previous prime is 20122020222067. The next prime is 20122020222113. The reversal of 20122020222111 is 11122202022102.

It is a happy number.

20122020222111 is a `hidden beast` number, since 20 + 1 + 220 + 202 + 221 + 1 + 1 = 666.

It is not a de Polignac number, because 20122020222111 - 2¹⁰ = 20122020221087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122020222113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1311961 + ... + 6478061.

It is an arithmetic number, because the mean of its divisors is an integer number (1214979366666).

Almost surely, 2^{20122020222111} is an apocalyptic number.

20122020222111 is a deficient number, since it is larger than the sum of its proper divisors (9037484577873).

20122020222111 is a wasteful number, since it uses less digits than its factorization.

20122020222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5167511 (or 5167508 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20122020222111 its reverse (11122202022102), we get a palindrome (31244222244213).

The spelling of 20122020222111 in words is "twenty trillion, one hundred twenty-two billion, twenty million, two hundred twenty-two thousand, one hundred eleven".