30302232001221 has 4 divisors (see below), whose sum is σ = 40402976001632. Its totient is φ = 20201488000812.

The previous prime is 30302232001201. The next prime is 30302232001229. The reversal of 30302232001221 is 12210023220303.

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 30302232001221 - 2⁵ = 30302232001189 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 (30302232001229) 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, 5050372000201 + ... + 5050372000206.

It is an arithmetic number, because the mean of its divisors is an integer number (10100744000408).

Almost surely, 2^{30302232001221} is an apocalyptic number.

It is an amenable number.

30302232001221 is a deficient number, since it is larger than the sum of its proper divisors (10100744000411).

30302232001221 is a wasteful number, since it uses less digits than its factorization.

30302232001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100744000410.

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

Adding to 30302232001221 its reverse (12210023220303), we get a palindrome (42512255221524).

The spelling of 30302232001221 in words is "thirty trillion, three hundred two billion, two hundred thirty-two million, one thousand, two hundred twenty-one".