132144402021221 has 4 divisors (see below), whose sum is σ = 132144491486700. Its totient is φ = 132144312555744.

The previous prime is 132144402021139. The next prime is 132144402021239. The reversal of 132144402021221 is 122120204441231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78727467122500 + 53416934898721 = 8872850^2 + 7308689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132144402021221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132144402021241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42479336 + ... + 45483873.

It is an arithmetic number, because the mean of its divisors is an integer number (33036122871675).

Almost surely, 2^{132144402021221} is an apocalyptic number.

It is an amenable number.

132144402021221 is a deficient number, since it is larger than the sum of its proper divisors (89465479).

132144402021221 is an equidigital number, since it uses as much as digits as its factorization.

132144402021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89465478.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 132144402021221 its reverse (122120204441231), we get a palindrome (254264606462452).

The spelling of 132144402021221 in words is "one hundred thirty-two trillion, one hundred forty-four billion, four hundred two million, twenty-one thousand, two hundred twenty-one".