12212202011111 has 16 divisors (see below), whose sum is σ = 13631347778400. Its totient is φ = 10872718553088.

The previous prime is 12212202011101. The next prime is 12212202011131. The reversal of 12212202011111 is 11111020221221.

It is a cyclic number.

It is not a de Polignac number, because 12212202011111 - 2⁴² = 7814155500007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212202011111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212202011101) 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, 27872276 + ... + 28307033.

It is an arithmetic number, because the mean of its divisors is an integer number (851959236150).

Almost surely, 2^{12212202011111} is an apocalyptic number.

12212202011111 is a deficient number, since it is larger than the sum of its proper divisors (1419145767289).

12212202011111 is a wasteful number, since it uses less digits than its factorization.

12212202011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56180018.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12212202011111 its reverse (11111020221221), we get a palindrome (23323222232332).

The spelling of 12212202011111 in words is "twelve trillion, two hundred twelve billion, two hundred two million, eleven thousand, one hundred eleven".