20211133111112 has 16 divisors (see below), whose sum is σ = 37896023418300. Its totient is φ = 10105526866240.

The previous prime is 20211133111021. The next prime is 20211133111139. The reversal of 20211133111112 is 21111133111202.

It can be written as a sum of positive squares in 2 ways, for example, as 20116068188836 + 95064922276 = 4485094^2 + 308326^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2738339 + ... + 6922482.

Almost surely, 2^{20211133111112} is an apocalyptic number.

It is an amenable number.

20211133111112 is a deficient number, since it is larger than the sum of its proper divisors (17684890307188).

20211133111112 is a wasteful number, since it uses less digits than its factorization.

20211133111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9922336 (or 9922332 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 20211133111112 its reverse (21111133111202), we get a palindrome (41322266222314).

The spelling of 20211133111112 in words is "twenty trillion, two hundred eleven billion, one hundred thirty-three million, one hundred eleven thousand, one hundred twelve".