30220140021 has 4 divisors (see below), whose sum is σ = 40293520032. Its totient is φ = 20146760012.

The previous prime is 30220139987. The next prime is 30220140023. The reversal of 30220140021 is 12004102203.

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 a cyclic number.

It is not a de Polignac number, because 30220140021 - 2²³ = 30211751413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220140023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5036690001 + ... + 5036690006.

It is an arithmetic number, because the mean of its divisors is an integer number (10073380008).

Almost surely, 2^30220140021 is an apocalyptic number.

It is an amenable number.

30220140021 is a deficient number, since it is larger than the sum of its proper divisors (10073380011).

30220140021 is a wasteful number, since it uses less digits than its factorization.

30220140021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10073380010.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 30220140021 its reverse (12004102203), we get a palindrome (42224242224).

The spelling of 30220140021 in words is "thirty billion, two hundred twenty million, one hundred forty thousand, twenty-one".