12212010021111 has 4 divisors (see below), whose sum is σ = 16282680028152. Its totient is φ = 8141340014072.

The previous prime is 12212010021037. The next prime is 12212010021151. The reversal of 12212010021111 is 11112001021221.

It is a happy number.

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 12212010021111 - 2¹⁷ = 12212009890039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212010021151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035335003516 + ... + 2035335003521.

It is an arithmetic number, because the mean of its divisors is an integer number (4070670007038).

Almost surely, 2^{12212010021111} is an apocalyptic number.

12212010021111 is a deficient number, since it is larger than the sum of its proper divisors (4070670007041).

12212010021111 is an equidigital number, since it uses as much as digits as its factorization.

12212010021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070670007040.

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

Adding to 12212010021111 its reverse (11112001021221), we get a palindrome (23324011042332).

The spelling of 12212010021111 in words is "twelve trillion, two hundred twelve billion, ten million, twenty-one thousand, one hundred eleven".