30012220221 has 8 divisors (see below), whose sum is σ = 40018769664. Its totient is φ = 20006908800.

The previous prime is 30012220207. The next prime is 30012220229. The reversal of 30012220221 is 12202221003.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30012220221 - 2⁶ = 30012220157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30012220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012220229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251380 + ... + 351021.

It is an arithmetic number, because the mean of its divisors is an integer number (5002346208).

Almost surely, 2^30012220221 is an apocalyptic number.

It is an amenable number.

30012220221 is a deficient number, since it is larger than the sum of its proper divisors (10006549443).

30012220221 is a wasteful number, since it uses less digits than its factorization.

30012220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619011.

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

Adding to 30012220221 its reverse (12202221003), we get a palindrome (42214441224).

It can be divided in two parts, 3001 and 2220221, that added together give a palindrome (2223222).

The spelling of 30012220221 in words is "thirty billion, twelve million, two hundred twenty thousand, two hundred twenty-one".