20211112111312 has 40 divisors (see below), whose sum is σ = 39594843642816. Its totient is φ = 9993648888576.

The previous prime is 20211112111303. The next prime is 20211112111369. The reversal of 20211112111312 is 21311121111202.

It is a super-2 number, since 2×20211112111312² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20211112111312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16952778 + ... + 18105769.

Almost surely, 2^{20211112111312} is an apocalyptic number.

It is an amenable number.

20211112111312 is a deficient number, since it is larger than the sum of its proper divisors (19383731531504).

20211112111312 is a wasteful number, since it uses less digits than its factorization.

20211112111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35058955 (or 35058949 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 20211112111312 its reverse (21311121111202), we get a palindrome (41522233222514).

The spelling of 20211112111312 in words is "twenty trillion, two hundred eleven billion, one hundred twelve million, one hundred eleven thousand, three hundred twelve".