12010020212111 has 4 divisors (see below), whose sum is σ = 12716491989312. Its totient is φ = 11303548434912.

The previous prime is 12010020212101. The next prime is 12010020212231. The reversal of 12010020212111 is 11121202001021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12010020212111 - 2²² = 12010016017807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010020212101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353235888575 + ... + 353235888608.

It is an arithmetic number, because the mean of its divisors is an integer number (3179122997328).

Almost surely, 2^{12010020212111} is an apocalyptic number.

12010020212111 is a deficient number, since it is larger than the sum of its proper divisors (706471777201).

12010020212111 is an equidigital number, since it uses as much as digits as its factorization.

12010020212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706471777200.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12010020212111 its reverse (11121202001021), we get a palindrome (23131222213132).

The spelling of 12010020212111 in words is "twelve trillion, ten billion, twenty million, two hundred twelve thousand, one hundred eleven".