30122210030021 has 4 divisors (see below), whose sum is σ = 30122229790752. Its totient is φ = 30122190269292.

The previous prime is 30122210029981. The next prime is 30122210030047. The reversal of 30122210030021 is 12003001222103.

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 a de Polignac number, because none of the positive numbers 2^k-30122210030021 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 (30122210030221) 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, 7383521 + ... + 10712646.

It is an arithmetic number, because the mean of its divisors is an integer number (7530557447688).

Almost surely, 2^{30122210030021} is an apocalyptic number.

It is an amenable number.

30122210030021 is a deficient number, since it is larger than the sum of its proper divisors (19760731).

30122210030021 is a wasteful number, since it uses less digits than its factorization.

30122210030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19760730.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30122210030021 its reverse (12003001222103), we get a palindrome (42125211252124).

The spelling of 30122210030021 in words is "thirty trillion, one hundred twenty-two billion, two hundred ten million, thirty thousand, twenty-one".