12121222411 has 16 divisors (see below), whose sum is σ = 13158512640. Its totient is φ = 11120440320.

The previous prime is 12121222369. The next prime is 12121222417. The reversal of 12121222411 is 11422212121.

It is a cyclic number.

It is not a de Polignac number, because 12121222411 - 2⁷ = 12121222283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121222417) 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, 884665 + ... + 898261.

It is an arithmetic number, because the mean of its divisors is an integer number (822407040).

Almost surely, 2^12121222411 is an apocalyptic number.

12121222411 is a deficient number, since it is larger than the sum of its proper divisors (1037290229).

12121222411 is a wasteful number, since it uses less digits than its factorization.

12121222411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14934.

The product of its digits is 128, while the sum is 19.

Adding to 12121222411 its reverse (11422212121), we get a palindrome (23543434532).

The spelling of 12121222411 in words is "twelve billion, one hundred twenty-one million, two hundred twenty-two thousand, four hundred eleven".