12212210001111 has 16 divisors (see below), whose sum is σ = 17276760345600. Its totient is φ = 7646566122368.

The previous prime is 12212210001059. The next prime is 12212210001139. The reversal of 12212210001111 is 11110001221221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12212210001111 - 2¹⁹ = 12212209476823 is a prime.

It is a super-2 number, since 2×12212210001111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212210001811) 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, 249928701 + ... + 249977558.

It is an arithmetic number, because the mean of its divisors is an integer number (1079797521600).

Almost surely, 2^{12212210001111} is an apocalyptic number.

12212210001111 is a deficient number, since it is larger than the sum of its proper divisors (5064550344489).

12212210001111 is a wasteful number, since it uses less digits than its factorization.

12212210001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499906758.

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

Adding to 12212210001111 its reverse (11110001221221), we get a palindrome (23322211222332).

The spelling of 12212210001111 in words is "twelve trillion, two hundred twelve billion, two hundred ten million, one thousand, one hundred eleven".