30023031022221 has 4 divisors (see below), whose sum is σ = 40030708029632. Its totient is φ = 20015354014812.

The previous prime is 30023031022129. The next prime is 30023031022223. The reversal of 30023031022221 is 12222013032003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30023031022221 - 2⁷ = 30023031022093 is a prime.

It is a super-2 number, since 2×30023031022221² (a number of 28 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 (30023031022223) 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, 5003838503701 + ... + 5003838503706.

It is an arithmetic number, because the mean of its divisors is an integer number (10007677007408).

Almost surely, 2^{30023031022221} is an apocalyptic number.

It is an amenable number.

30023031022221 is a deficient number, since it is larger than the sum of its proper divisors (10007677007411).

30023031022221 is a wasteful number, since it uses less digits than its factorization.

30023031022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007677007410.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30023031022221 its reverse (12222013032003), we get a palindrome (42245044054224).

The spelling of 30023031022221 in words is "thirty trillion, twenty-three billion, thirty-one million, twenty-two thousand, two hundred twenty-one".