12221122102011 has 6 divisors (see below), whose sum is σ = 17652731925140. Its totient is φ = 8147414734668.

The previous prime is 12221122101959. The next prime is 12221122102019. The reversal of 12221122102011 is 11020122112221.

It is not a de Polignac number, because 12221122102011 - 2³¹ = 12218974618363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221122102019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678951227881 + ... + 678951227898.

Almost surely, 2^{12221122102011} is an apocalyptic number.

12221122102011 is a deficient number, since it is larger than the sum of its proper divisors (5431609823129).

12221122102011 is a wasteful number, since it uses less digits than its factorization.

12221122102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357902455785 (or 1357902455782 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12221122102011 its reverse (11020122112221), we get a palindrome (23241244214232).

The spelling of 12221122102011 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred two thousand, eleven".