2221303232131 has 4 divisors (see below), whose sum is σ = 2317881633552. Its totient is φ = 2124724830712.

The previous prime is 2221303232117. The next prime is 2221303232147. The reversal of 2221303232131 is 1312323031222.

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

It is a cyclic number.

It is not a de Polignac number, because 2221303232131 - 2¹⁹ = 2221302707843 is a prime.

It is a super-2 number, since 2×2221303232131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221303232096 and 2221303232105.

It is not an unprimeable number, because it can be changed into a prime (2221303232111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48289200676 + ... + 48289200721.

It is an arithmetic number, because the mean of its divisors is an integer number (579470408388).

Almost surely, 2^{2221303232131} is an apocalyptic number.

2221303232131 is a deficient number, since it is larger than the sum of its proper divisors (96578401421).

2221303232131 is an equidigital number, since it uses as much as digits as its factorization.

2221303232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96578401420.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2221303232131 its reverse (1312323031222), we get a palindrome (3533626263353).

The spelling of 2221303232131 in words is "two trillion, two hundred twenty-one billion, three hundred three million, two hundred thirty-two thousand, one hundred thirty-one".