321100225401 has 16 divisors (see below), whose sum is σ = 453681000000. Its totient is φ = 201313302528.

The previous prime is 321100225393. The next prime is 321100225421. The reversal of 321100225401 is 104522001123.

It is not a de Polignac number, because 321100225401 - 2³ = 321100225393 is a prime.

It is a super-2 number, since 2×321100225401² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (321100225421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2456751 + ... + 2584148.

It is an arithmetic number, because the mean of its divisors is an integer number (28355062500).

Almost surely, 2^321100225401 is an apocalyptic number.

It is an amenable number.

321100225401 is a deficient number, since it is larger than the sum of its proper divisors (132580774599).

321100225401 is a wasteful number, since it uses less digits than its factorization.

321100225401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042168.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 321100225401 its reverse (104522001123), we get a palindrome (425622226524).

The spelling of 321100225401 in words is "three hundred twenty-one billion, one hundred million, two hundred twenty-five thousand, four hundred one".