221313232030 has 32 divisors (see below), whose sum is σ = 440531859168. Its totient is φ = 79375104000.

The previous prime is 221313232003. The next prime is 221313232057. The reversal of 221313232030 is 30232313122.

It is an interprime number because it is at equal distance from previous prime (221313232003) and next prime (221313232057).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 221313231992 and 221313232010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13772371 + ... + 13788430.

It is an arithmetic number, because the mean of its divisors is an integer number (13766620599).

Almost surely, 2^221313232030 is an apocalyptic number.

221313232030 is a deficient number, since it is larger than the sum of its proper divisors (219218627138).

221313232030 is a wasteful number, since it uses less digits than its factorization.

221313232030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27560892.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 221313232030 its reverse (30232313122), we get a palindrome (251545545152).

The spelling of 221313232030 in words is "two hundred twenty-one billion, three hundred thirteen million, two hundred thirty-two thousand, thirty".