212012101210111 has 16 divisors (see below), whose sum is σ = 224730698227200. Its totient is φ = 199321033218048.

The previous prime is 212012101210093. The next prime is 212012101210211. The reversal of 212012101210111 is 111012101210212.

It is a cyclic number.

It is not a de Polignac number, because 212012101210111 - 2¹⁵ = 212012101177343 is a prime.

It is a super-3 number, since 3×212012101210111³ (a number of 44 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 (212012101210211) 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, 131415010 + ... + 133018528.

It is an arithmetic number, because the mean of its divisors is an integer number (14045668639200).

Almost surely, 2^{212012101210111} is an apocalyptic number.

212012101210111 is a deficient number, since it is larger than the sum of its proper divisors (12718597017089).

212012101210111 is a wasteful number, since it uses less digits than its factorization.

212012101210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612098.

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

Adding to 212012101210111 its reverse (111012101210212), we get a palindrome (323024202420323).

It can be divided in two parts, 212012101 and 210111, that added together give a palindrome (212222212).

The spelling of 212012101210111 in words is "two hundred twelve trillion, twelve billion, one hundred one million, two hundred ten thousand, one hundred eleven".