221000403130051 has 8 divisors (see below), whose sum is σ = 224739582492240. Its totient is φ = 217274184529248.

The previous prime is 221000403130037. The next prime is 221000403130093. The reversal of 221000403130051 is 150031304000122.

It is a happy number.

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 221000403130051 - 2¹¹ = 221000403128003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221000403130651) 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, 3240155956 + ... + 3240224161.

It is an arithmetic number, because the mean of its divisors is an integer number (28092447811530).

Almost surely, 2^{221000403130051} is an apocalyptic number.

221000403130051 is a deficient number, since it is larger than the sum of its proper divisors (3739179362189).

221000403130051 is an equidigital number, since it uses as much as digits as its factorization.

221000403130051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480380693.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 221000403130051 its reverse (150031304000122), we get a palindrome (371031707130173).

The spelling of 221000403130051 in words is "two hundred twenty-one trillion, four hundred three million, one hundred thirty thousand, fifty-one".