30021202231 has 16 divisors (see below), whose sum is σ = 30619274400. Its totient is φ = 29429503488.

The previous prime is 30021202229. The next prime is 30021202279. The reversal of 30021202231 is 13220212003.

It is a cyclic number.

It is not a de Polignac number, because 30021202231 - 2¹ = 30021202229 is a prime.

It is a super-2 number, since 2×30021202231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021202291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17422936 + ... + 17424658.

It is an arithmetic number, because the mean of its divisors is an integer number (1913704650).

Almost surely, 2^30021202231 is an apocalyptic number.

30021202231 is a deficient number, since it is larger than the sum of its proper divisors (598072169).

30021202231 is a wasteful number, since it uses less digits than its factorization.

30021202231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30021202231 its reverse (13220212003), we get a palindrome (43241414234).

The spelling of 30021202231 in words is "thirty billion, twenty-one million, two hundred two thousand, two hundred thirty-one".