20211112122011 has 8 divisors (see below), whose sum is σ = 20913657021120. Its totient is φ = 19508941222848.

The previous prime is 20211112121957. The next prime is 20211112122031. The reversal of 20211112122011 is 11022121111202.

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

It is a cyclic number.

It is not a de Polignac number, because 20211112122011 - 2¹⁴ = 20211112105627 is a prime.

It is a super-3 number, since 3×20211112122011³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211112122031) 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, 93390026 + ... + 93606191.

It is an arithmetic number, because the mean of its divisors is an integer number (2614207127640).

Almost surely, 2^{20211112122011} is an apocalyptic number.

20211112122011 is a deficient number, since it is larger than the sum of its proper divisors (702544899109).

20211112122011 is a wasteful number, since it uses less digits than its factorization.

20211112122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186999973.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20211112122011 its reverse (11022121111202), we get a palindrome (31233233233213).

The spelling of 20211112122011 in words is "twenty trillion, two hundred eleven billion, one hundred twelve million, one hundred twenty-two thousand, eleven".