32120221223231 has 2 divisors, whose sum is σ = 32120221223232. Its totient is φ = 32120221223230.

The previous prime is 32120221223191. The next prime is 32120221223257. The reversal of 32120221223231 is 13232212202123.

It is an a-pointer prime, because the next prime (32120221223257) can be obtained adding 32120221223231 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32120221223231 is a prime.

It is a super-2 number, since 2×32120221223231² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32120221223231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32120221225231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060110611615 + 16060110611616.

It is an arithmetic number, because the mean of its divisors is an integer number (16060110611616).

Almost surely, 2^{32120221223231} is an apocalyptic number.

32120221223231 is a deficient number, since it is larger than the sum of its proper divisors (1).

32120221223231 is an equidigital number, since it uses as much as digits as its factorization.

32120221223231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 32120221223231 its reverse (13232212202123), we get a palindrome (45352433425354).

The spelling of 32120221223231 in words is "thirty-two trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twenty-three thousand, two hundred thirty-one".