221330202213231 has 6 divisors (see below), whose sum is σ = 319699180974680. Its totient is φ = 147553468142148.

The previous prime is 221330202213157. The next prime is 221330202213277. The reversal of 221330202213231 is 132312202033122.

221330202213231 is a `hidden beast` number, since 2 + 2 + 1 + 330 + 2 + 0 + 2 + 2 + 1 + 323 + 1 = 666.

It is not a de Polignac number, because 221330202213231 - 2¹⁵ = 221330202180463 is a prime.

It is a super-2 number, since 2×221330202213231² (a number of 29 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 = 221330202213195 and 221330202213204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221330202213431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12296122345171 + ... + 12296122345188.

Almost surely, 2^{221330202213231} is an apocalyptic number.

221330202213231 is a deficient number, since it is larger than the sum of its proper divisors (98368978761449).

221330202213231 is a wasteful number, since it uses less digits than its factorization.

221330202213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24592244690365 (or 24592244690362 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 221330202213231 its reverse (132312202033122), we get a palindrome (353642404246353).

The spelling of 221330202213231 in words is "two hundred twenty-one trillion, three hundred thirty billion, two hundred two million, two hundred thirteen thousand, two hundred thirty-one".