12221120020031 has 16 divisors (see below), whose sum is σ = 13936309025184. Its totient is φ = 10616747065344.

The previous prime is 12221120020013. The next prime is 12221120020033. The reversal of 12221120020031 is 13002002112221.

It is a cyclic number.

It is not a de Polignac number, because 12221120020031 - 2¹⁸ = 12221119757887 is a prime.

It is a super-2 number, since 2×12221120020031² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 12221120019991 and 12221120020009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221120020033) 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, 1576511 + ... + 5189183.

It is an arithmetic number, because the mean of its divisors is an integer number (871019314074).

Almost surely, 2^{12221120020031} is an apocalyptic number.

12221120020031 is a deficient number, since it is larger than the sum of its proper divisors (1715189005153).

12221120020031 is a wasteful number, since it uses less digits than its factorization.

12221120020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628010.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12221120020031 its reverse (13002002112221), we get a palindrome (25223122132252).

The spelling of 12221120020031 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty million, twenty thousand, thirty-one".