3132220219981 has 2 divisors, whose sum is σ = 3132220219982. Its totient is φ = 3132220219980.

The previous prime is 3132220219979. The next prime is 3132220220069. The reversal of 3132220219981 is 1899120222313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3064355280900 + 67864939081 = 1750530^2 + 260509^2 .

It is a cyclic number.

It is not a de Polignac number, because 3132220219981 - 2¹ = 3132220219979 is a prime.

It is a super-2 number, since 2×3132220219981² (a number of 26 digits) contains 22 as substring.

Together with 3132220219979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3132220219951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566110109990 + 1566110109991.

It is an arithmetic number, because the mean of its divisors is an integer number (1566110109991).

Almost surely, 2^{3132220219981} is an apocalyptic number.

It is an amenable number.

3132220219981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3132220219981 is an equidigital number, since it uses as much as digits as its factorization.

3132220219981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 3132220219981 in words is "three trillion, one hundred thirty-two billion, two hundred twenty million, two hundred nineteen thousand, nine hundred eighty-one".