12221212102111 has 8 divisors (see below), whose sum is σ = 12472519513104. Its totient is φ = 11970672043200.

The previous prime is 12221212102103. The next prime is 12221212102123. The reversal of 12221212102111 is 11120121212221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12221212102111 - 2³ = 12221212102103 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 (12221212102171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191805841 + ... + 191869546.

It is an arithmetic number, because the mean of its divisors is an integer number (1559064939138).

Almost surely, 2^{12221212102111} is an apocalyptic number.

12221212102111 is a deficient number, since it is larger than the sum of its proper divisors (251307410993).

12221212102111 is an equidigital number, since it uses as much as digits as its factorization.

12221212102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383676041.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12221212102111 its reverse (11120121212221), we get a palindrome (23341333314332).

The spelling of 12221212102111 in words is "twelve trillion, two hundred twenty-one billion, two hundred twelve million, one hundred two thousand, one hundred eleven".