221000233130 has 8 divisors (see below), whose sum is σ = 397800419652. Its totient is φ = 88400093248.

The previous prime is 221000233061. The next prime is 221000233133. The reversal of 221000233130 is 31332000122.

It can be written as a sum of positive squares in 2 ways, for example, as 215194859881 + 5805373249 = 463891^2 + 76193^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×221000233130² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221000233099 and 221000233108.

It is not an unprimeable number, because it can be changed into a prime (221000233133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11050011647 + ... + 11050011666.

Almost surely, 2^221000233130 is an apocalyptic number.

221000233130 is a deficient number, since it is larger than the sum of its proper divisors (176800186522).

221000233130 is a wasteful number, since it uses less digits than its factorization.

221000233130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22100023320.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 221000233130 its reverse (31332000122), we get a palindrome (252332233252).

The spelling of 221000233130 in words is "two hundred twenty-one billion, two hundred thirty-three thousand, one hundred thirty".