221133121030 has 8 divisors (see below), whose sum is σ = 398039617872. Its totient is φ = 88453248408.

The previous prime is 221133121021. The next prime is 221133121031. The reversal of 221133121030 is 30121331122.

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

It is a junction number, because it is equal to n+sod(n) for n = 221133120989 and 221133121007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221133121031) 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, 11056656042 + ... + 11056656061.

It is an arithmetic number, because the mean of its divisors is an integer number (49754952234).

Almost surely, 2^221133121030 is an apocalyptic number.

221133121030 is a deficient number, since it is larger than the sum of its proper divisors (176906496842).

221133121030 is a wasteful number, since it uses less digits than its factorization.

221133121030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22113312110.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 221133121030 its reverse (30121331122), we get a palindrome (251254452152).

The spelling of 221133121030 in words is "two hundred twenty-one billion, one hundred thirty-three million, one hundred twenty-one thousand, thirty".