1220232230231 has 16 divisors (see below), whose sum is σ = 1421007763968. Its totient is φ = 1026074868000.

The previous prime is 1220232230179. The next prime is 1220232230237. The reversal of 1220232230231 is 1320322320221.

It is not a de Polignac number, because 1220232230231 - 2⁶ = 1220232230167 is a prime.

It is a super-2 number, since 2×1220232230231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220232230197 and 1220232230206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220232230237) 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 15 ways as a sum of consecutive naturals, for example, 3604016 + ... + 3928026.

It is an arithmetic number, because the mean of its divisors is an integer number (88812985248).

Almost surely, 2^{1220232230231} is an apocalyptic number.

1220232230231 is a deficient number, since it is larger than the sum of its proper divisors (200775533737).

1220232230231 is a wasteful number, since it uses less digits than its factorization.

1220232230231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334222.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1220232230231 its reverse (1320322320221), we get a palindrome (2540554550452).

The spelling of 1220232230231 in words is "one trillion, two hundred twenty billion, two hundred thirty-two million, two hundred thirty thousand, two hundred thirty-one".