12221232203013 has 16 divisors (see below), whose sum is σ = 17152855948800. Its totient is φ = 7718560763760.

The previous prime is 12221232203009. The next prime is 12221232203077. The reversal of 12221232203013 is 31030223212221.

It is not a de Polignac number, because 12221232203013 - 2² = 12221232203009 is a prime.

It is a super-4 number, since 4×12221232203013⁴ (a number of 53 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221232203093) 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, 2488368 + ... + 5534838.

It is an arithmetic number, because the mean of its divisors is an integer number (1072053496800).

Almost surely, 2^{12221232203013} is an apocalyptic number.

It is an amenable number.

12221232203013 is a deficient number, since it is larger than the sum of its proper divisors (4931623745787).

12221232203013 is a wasteful number, since it uses less digits than its factorization.

12221232203013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116872.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12221232203013 its reverse (31030223212221), we get a palindrome (43251455415234).

The spelling of 12221232203013 in words is "twelve trillion, two hundred twenty-one billion, two hundred thirty-two million, two hundred three thousand, thirteen".