12211121201013 has 48 divisors (see below), whose sum is σ = 21303529228800. Its totient is φ = 6584194836000.

The previous prime is 12211121200879. The next prime is 12211121201021. The reversal of 12211121201013 is 31010212111221.

It is a happy number.

It is not a de Polignac number, because 12211121201013 - 2¹⁸ = 12211120938869 is a prime.

It is a super-2 number, since 2×12211121201013² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211121201113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20021143 + ... + 20622036.

It is an arithmetic number, because the mean of its divisors is an integer number (443823525600).

Almost surely, 2^{12211121201013} is an apocalyptic number.

It is an amenable number.

12211121201013 is a deficient number, since it is larger than the sum of its proper divisors (9092408027787).

12211121201013 is a wasteful number, since it uses less digits than its factorization.

12211121201013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40643462 (or 40643459 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12211121201013 its reverse (31010212111221), we get a palindrome (43221333312234).

The spelling of 12211121201013 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-one million, two hundred one thousand, thirteen".