12221130031 has 32 divisors (see below), whose sum is σ = 13950351360. Its totient is φ = 10605686400.

The previous prime is 12221130013. The next prime is 12221130037. The reversal of 12221130031 is 13003112221.

It is a cyclic number.

It is not a de Polignac number, because 12221130031 - 2¹⁹ = 12220605743 is a prime.

It is a super-2 number, since 2×12221130031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221129987 and 12221130014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221130037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10295220 + ... + 10296406.

It is an arithmetic number, because the mean of its divisors is an integer number (435948480).

Almost surely, 2^12221130031 is an apocalyptic number.

12221130031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12221130031 is a deficient number, since it is larger than the sum of its proper divisors (1729221329).

12221130031 is a wasteful number, since it uses less digits than its factorization.

12221130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12221130031 its reverse (13003112221), we get a palindrome (25224242252).

The spelling of 12221130031 in words is "twelve billion, two hundred twenty-one million, one hundred thirty thousand, thirty-one".