12221110011211 has 8 divisors (see below), whose sum is σ = 12573425802704. Its totient is φ = 11873791607040.

The previous prime is 12221110011193. The next prime is 12221110011233. The reversal of 12221110011211 is 11211001112221.

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 12221110011211 - 2⁹ = 12221110010699 is a prime.

It is a super-2 number, since 2×12221110011211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221110011311) 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, 1249341870 + ... + 1249351651.

It is an arithmetic number, because the mean of its divisors is an integer number (1571678225338).

Almost surely, 2^{12221110011211} is an apocalyptic number.

12221110011211 is a deficient number, since it is larger than the sum of its proper divisors (352315791493).

12221110011211 is an equidigital number, since it uses as much as digits as its factorization.

12221110011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498693661.

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

Adding to 12221110011211 its reverse (11211001112221), we get a palindrome (23432111123432).

The spelling of 12221110011211 in words is "twelve trillion, two hundred twenty-one billion, one hundred ten million, eleven thousand, two hundred eleven".