20122111001111 has 8 divisors (see below), whose sum is σ = 22999844699040. Its totient is φ = 17245163906208.

The previous prime is 20122111001059. The next prime is 20122111001173. The reversal of 20122111001111 is 11110011122102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20122111001111 - 2¹⁰ = 20122111000087 is a prime.

It is a super-2 number, since 2×20122111001111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122111001411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196595936 + ... + 196698261.

It is an arithmetic number, because the mean of its divisors is an integer number (2874980587380).

Almost surely, 2^{20122111001111} is an apocalyptic number.

20122111001111 is a deficient number, since it is larger than the sum of its proper divisors (2877733697929).

20122111001111 is an equidigital number, since it uses as much as digits as its factorization.

20122111001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393301513.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20122111001111 its reverse (11110011122102), we get a palindrome (31232122123213).

The spelling of 20122111001111 in words is "twenty trillion, one hundred twenty-two billion, one hundred eleven million, one thousand, one hundred eleven".