221330133311 has 8 divisors (see below), whose sum is σ = 253235846304. Its totient is φ = 189496200960.

The previous prime is 221330133307. The next prime is 221330133313. The reversal of 221330133311 is 113331033122.

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 221330133311 - 2² = 221330133307 is a prime.

It is a super-2 number, since 2×221330133311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221330133313) 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, 17938550 + ... + 17950883.

It is an arithmetic number, because the mean of its divisors is an integer number (31654480788).

Almost surely, 2^221330133311 is an apocalyptic number.

221330133311 is a deficient number, since it is larger than the sum of its proper divisors (31905712993).

221330133311 is an equidigital number, since it uses as much as digits as its factorization.

221330133311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35890321.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 221330133311 its reverse (113331033122), we get a palindrome (334661166433).

The spelling of 221330133311 in words is "two hundred twenty-one billion, three hundred thirty million, one hundred thirty-three thousand, three hundred eleven".