30213311221 has 8 divisors (see below), whose sum is σ = 31530619584. Its totient is φ = 28896310080.

The previous prime is 30213311159. The next prime is 30213311237. The reversal of 30213311221 is 12211331203.

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

It is a cyclic number.

It is not a de Polignac number, because 30213311221 - 2³³ = 21623376629 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 (30213311021) 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, 136845 + ... + 281341.

It is an arithmetic number, because the mean of its divisors is an integer number (3941327448).

Almost surely, 2^30213311221 is an apocalyptic number.

It is an amenable number.

30213311221 is a deficient number, since it is larger than the sum of its proper divisors (1317308363).

30213311221 is a wasteful number, since it uses less digits than its factorization.

30213311221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153611.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30213311221 its reverse (12211331203), we get a palindrome (42424642424).

The spelling of 30213311221 in words is "thirty billion, two hundred thirteen million, three hundred eleven thousand, two hundred twenty-one".