30222143221 has 16 divisors (see below), whose sum is σ = 31885729920. Its totient is φ = 28588697280.

The previous prime is 30222143213. The next prime is 30222143321. The reversal of 30222143221 is 12234122203.

It is a cyclic number.

It is not a de Polignac number, because 30222143221 - 2³ = 30222143213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30222143192 and 30222143201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222143321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1345146 + ... + 1367428.

It is an arithmetic number, because the mean of its divisors is an integer number (1992858120).

Almost surely, 2^30222143221 is an apocalyptic number.

It is an amenable number.

30222143221 is a deficient number, since it is larger than the sum of its proper divisors (1663586699).

30222143221 is a wasteful number, since it uses less digits than its factorization.

30222143221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22956.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 30222143221 its reverse (12234122203), we get a palindrome (42456265424).

The spelling of 30222143221 in words is "thirty billion, two hundred twenty-two million, one hundred forty-three thousand, two hundred twenty-one".