12213131031211 has 8 divisors (see below), whose sum is σ = 13323630184704. Its totient is φ = 11102667630120.

The previous prime is 12213131031187. The next prime is 12213131031251. The reversal of 12213131031211 is 11213013131221.

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

It is not a de Polignac number, because 12213131031211 - 2¹¹ = 12213131029163 is a prime.

It is a super-2 number, since 2×12213131031211² (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 (12213131031251) 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, 8221335 + ... + 9592528.

It is an arithmetic number, because the mean of its divisors is an integer number (1665453773088).

Almost surely, 2^{12213131031211} is an apocalyptic number.

12213131031211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12213131031211 is a deficient number, since it is larger than the sum of its proper divisors (1110499153493).

12213131031211 is a wasteful number, since it uses less digits than its factorization.

12213131031211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17876201.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 12213131031211 its reverse (11213013131221), we get a palindrome (23426144162432).

The spelling of 12213131031211 in words is "twelve trillion, two hundred thirteen billion, one hundred thirty-one million, thirty-one thousand, two hundred eleven".