132124221020021 has 4 divisors (see below), whose sum is σ = 135695145912492. Its totient is φ = 128553296127552.

The previous prime is 132124221020003. The next prime is 132124221020053. The reversal of 132124221020021 is 120020122421231.

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 83727349570225 + 48396871449796 = 9150265^2 + 6956786^2 .

It is a cyclic number.

It is not a de Polignac number, because 132124221020021 - 2²⁶ = 132124153911157 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 (132124221025021) 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, 1785462446180 + ... + 1785462446253.

It is an arithmetic number, because the mean of its divisors is an integer number (33923786478123).

Almost surely, 2^{132124221020021} is an apocalyptic number.

It is an amenable number.

132124221020021 is a deficient number, since it is larger than the sum of its proper divisors (3570924892471).

132124221020021 is an equidigital number, since it uses as much as digits as its factorization.

132124221020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3570924892470.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 132124221020021 its reverse (120020122421231), we get a palindrome (252144343441252).

The spelling of 132124221020021 in words is "one hundred thirty-two trillion, one hundred twenty-four billion, two hundred twenty-one million, twenty thousand, twenty-one".