30221111121 has 4 divisors (see below), whose sum is σ = 40294814832. Its totient is φ = 20147407412.

The previous prime is 30221111099. The next prime is 30221111147. The reversal of 30221111121 is 12111112203.

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 30221111121 - 2⁶ = 30221111057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30221111121.

It is not an unprimeable number, because it can be changed into a prime (30221111161) 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, 5036851851 + ... + 5036851856.

It is an arithmetic number, because the mean of its divisors is an integer number (10073703708).

Almost surely, 2^30221111121 is an apocalyptic number.

It is an amenable number.

30221111121 is a deficient number, since it is larger than the sum of its proper divisors (10073703711).

30221111121 is a wasteful number, since it uses less digits than its factorization.

30221111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10073703710.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 30221111121 its reverse (12111112203), we get a palindrome (42332223324).

The spelling of 30221111121 in words is "thirty billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twenty-one".