325221215101 has 8 divisors (see below), whose sum is σ = 325884105144. Its totient is φ = 324558474240.

The previous prime is 325221215089. The next prime is 325221215107. The reversal of 325221215101 is 101512122523.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17252822500 + 307968392601 = 131350^2 + 554949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 325221215101 - 2¹⁹ = 325220690813 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 (325221215107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5019951 + ... + 5084323.

It is an arithmetic number, because the mean of its divisors is an integer number (40735513143).

Almost surely, 2^325221215101 is an apocalyptic number.

It is an amenable number.

325221215101 is a deficient number, since it is larger than the sum of its proper divisors (662890043).

325221215101 is an equidigital number, since it uses as much as digits as its factorization.

325221215101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74591.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 325221215101 its reverse (101512122523), we get a palindrome (426733337624).

The spelling of 325221215101 in words is "three hundred twenty-five billion, two hundred twenty-one million, two hundred fifteen thousand, one hundred one".