30231230222021 has 4 divisors (see below), whose sum is σ = 30248242733772. Its totient is φ = 30214217710272.

The previous prime is 30231230221889. The next prime is 30231230222029. The reversal of 30231230222021 is 12022203213203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21508363319521 + 8722866902500 = 4637711^2 + 2953450^2 .

It is a cyclic number.

It is not a de Polignac number, because 30231230222021 - 2¹⁴ = 30231230205637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231230222029) 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, 8506253210 + ... + 8506256763.

It is an arithmetic number, because the mean of its divisors is an integer number (7562060683443).

Almost surely, 2^{30231230222021} is an apocalyptic number.

It is an amenable number.

30231230222021 is a deficient number, since it is larger than the sum of its proper divisors (17012511751).

30231230222021 is a wasteful number, since it uses less digits than its factorization.

30231230222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17012511750.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30231230222021 its reverse (12022203213203), we get a palindrome (42253433435224).

The spelling of 30231230222021 in words is "thirty trillion, two hundred thirty-one billion, two hundred thirty million, two hundred twenty-two thousand, twenty-one".