20112222001111 has 16 divisors (see below), whose sum is σ = 20214171210240. Its totient is φ = 20010495221280.

The previous prime is 20112222001103. The next prime is 20112222001141. The reversal of 20112222001111 is 11110022221102.

It is a cyclic number.

It is not a de Polignac number, because 20112222001111 - 2³ = 20112222001103 is a prime.

It is a super-3 number, since 3×20112222001111³ (a number of 41 digits) contains 333 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 (20112222001141) 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, 1590269790 + ... + 1590282436.

It is an arithmetic number, because the mean of its divisors is an integer number (1263385700640).

Almost surely, 2^{20112222001111} is an apocalyptic number.

20112222001111 is a deficient number, since it is larger than the sum of its proper divisors (101949209129).

20112222001111 is a wasteful number, since it uses less digits than its factorization.

20112222001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20814.

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

Adding to 20112222001111 its reverse (11110022221102), we get a palindrome (31222244222213).

The spelling of 20112222001111 in words is "twenty trillion, one hundred twelve billion, two hundred twenty-two million, one thousand, one hundred eleven".