12212022111111 has 48 divisors (see below), whose sum is σ = 18087904579680. Its totient is φ = 7937012793600.

The previous prime is 12212022111109. The next prime is 12212022111137. The reversal of 12212022111111 is 11111122021221.

It is a happy number.

It is not a de Polignac number, because 12212022111111 - 2¹ = 12212022111109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212022111181) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145455301 + ... + 145539233.

It is an arithmetic number, because the mean of its divisors is an integer number (376831345410).

Almost surely, 2^{12212022111111} is an apocalyptic number.

12212022111111 is a deficient number, since it is larger than the sum of its proper divisors (5875882468569).

12212022111111 is a wasteful number, since it uses less digits than its factorization.

12212022111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86496 (or 86493 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12212022111111 its reverse (11111122021221), we get a palindrome (23323144132332).

The spelling of 12212022111111 in words is "twelve trillion, two hundred twelve billion, twenty-two million, one hundred eleven thousand, one hundred eleven".