1232220013181 has 2 divisors, whose sum is σ = 1232220013182. Its totient is φ = 1232220013180.

The previous prime is 1232220013169. The next prime is 1232220013217. The reversal of 1232220013181 is 1813100222321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1116931922500 + 115288090681 = 1056850^2 + 339541^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232220013181 - 2¹⁴ = 1232219996797 is a prime.

It is a super-3 number, since 3×1232220013181³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1232220013181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232820013181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616110006590 + 616110006591.

It is an arithmetic number, because the mean of its divisors is an integer number (616110006591).

Almost surely, 2^{1232220013181} is an apocalyptic number.

It is an amenable number.

1232220013181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232220013181 is an equidigital number, since it uses as much as digits as its factorization.

1232220013181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 1232220013181 in words is "one trillion, two hundred thirty-two billion, two hundred twenty million, thirteen thousand, one hundred eighty-one".