30221015445 has 24 divisors (see below), whose sum is σ = 52550476056. Its totient is φ = 16066372608.

The previous prime is 30221015441. The next prime is 30221015453. The reversal of 30221015445 is 54451012203.

30221015445 is a `hidden beast` number, since 3 + 0 + 2 + 210 + 1 + 5 + 445 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 797102289 + 29423913156 = 28233^2 + 171534^2 .

It is not a de Polignac number, because 30221015445 - 2² = 30221015441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221015441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1058724 + ... + 1086893.

It is an arithmetic number, because the mean of its divisors is an integer number (2189603169).

Almost surely, 2^30221015445 is an apocalyptic number.

It is an amenable number.

30221015445 is a deficient number, since it is larger than the sum of its proper divisors (22329460611).

30221015445 is a wasteful number, since it uses less digits than its factorization.

30221015445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145941 (or 2145938 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 30221015445 its reverse (54451012203), we get a palindrome (84672027648).

The spelling of 30221015445 in words is "thirty billion, two hundred twenty-one million, fifteen thousand, four hundred forty-five".