30222020231221 has 16 divisors (see below), whose sum is σ = 37272088925568. Its totient is φ = 23863227595200.

The previous prime is 30222020231131. The next prime is 30222020231233. The reversal of 30222020231221 is 12213202022203.

It is not a de Polignac number, because 30222020231221 - 2¹¹ = 30222020229173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30222020231192 and 30222020231201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222020231321) 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, 338152990 + ... + 338242351.

It is an arithmetic number, because the mean of its divisors is an integer number (2329505557848).

Almost surely, 2^{30222020231221} is an apocalyptic number.

It is an amenable number.

30222020231221 is a deficient number, since it is larger than the sum of its proper divisors (7050068694347).

30222020231221 is a wasteful number, since it uses less digits than its factorization.

30222020231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676395852.

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

Adding to 30222020231221 its reverse (12213202022203), we get a palindrome (42435222253424).

The spelling of 30222020231221 in words is "thirty trillion, two hundred twenty-two billion, twenty million, two hundred thirty-one thousand, two hundred twenty-one".