30221021112123 has 32 divisors (see below), whose sum is σ = 40632333299712. Its totient is φ = 19978852608000.

The previous prime is 30221021112053. The next prime is 30221021112173. The reversal of 30221021112123 is 32121112012203.

It is not a de Polignac number, because 30221021112123 - 2⁸ = 30221021111867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30221021112123.

It is not an unprimeable number, because it can be changed into a prime (30221021112173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3617979915 + ... + 3617988267.

It is an arithmetic number, because the mean of its divisors is an integer number (1269760415616).

Almost surely, 2^{30221021112123} is an apocalyptic number.

30221021112123 is a deficient number, since it is larger than the sum of its proper divisors (10411312187589).

30221021112123 is a wasteful number, since it uses less digits than its factorization.

30221021112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16875.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 30221021112123 its reverse (32121112012203), we get a palindrome (62342133124326).

The spelling of 30221021112123 in words is "thirty trillion, two hundred twenty-one billion, twenty-one million, one hundred twelve thousand, one hundred twenty-three".