20212112010111 has 24 divisors (see below), whose sum is σ = 32430411958320. Its totient is φ = 11151510072192.

The previous prime is 20212112010109. The next prime is 20212112010119. The reversal of 20212112010111 is 11101021121202.

It is a happy number.

It is not a de Polignac number, because 20212112010111 - 2¹ = 20212112010109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212112010119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2370639886 + ... + 2370648411.

It is an arithmetic number, because the mean of its divisors is an integer number (1351267164930).

Almost surely, 2^{20212112010111} is an apocalyptic number.

20212112010111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20212112010111 is a deficient number, since it is larger than the sum of its proper divisors (12218299948209).

20212112010111 is a wasteful number, since it uses less digits than its factorization.

20212112010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4741288343 (or 4741288336 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20212112010111 its reverse (11101021121202), we get a palindrome (31313133131313).

The spelling of 20212112010111 in words is "twenty trillion, two hundred twelve billion, one hundred twelve million, ten thousand, one hundred eleven".