12221333031 has 8 divisors (see below), whose sum is σ = 17253646704. Its totient is φ = 7668287360.

The previous prime is 12221333023. The next prime is 12221333087. The reversal of 12221333031 is 13033312221.

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 12221333031 - 2³ = 12221333023 is a prime.

It is a super-2 number, since 2×12221333031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221332989 and 12221333007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221332031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119816940 + ... + 119817041.

It is an arithmetic number, because the mean of its divisors is an integer number (2156705838).

Almost surely, 2^12221333031 is an apocalyptic number.

12221333031 is a deficient number, since it is larger than the sum of its proper divisors (5032313673).

12221333031 is a wasteful number, since it uses less digits than its factorization.

12221333031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239634001.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12221333031 its reverse (13033312221), we get a palindrome (25254645252).

The spelling of 12221333031 in words is "twelve billion, two hundred twenty-one million, three hundred thirty-three thousand, thirty-one".