30221020222331 has 4 divisors (see below), whose sum is σ = 30221671429464. Its totient is φ = 30220369015200.

The previous prime is 30221020222307. The next prime is 30221020222339. The reversal of 30221020222331 is 13322202012203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30221020222331 - 2¹⁴ = 30221020205947 is a prime.

It is a super-2 number, since 2×30221020222331² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30221020222297 and 30221020222306.

It is not an unprimeable number, because it can be changed into a prime (30221020222339) 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, 325533950 + ... + 325626771.

It is an arithmetic number, because the mean of its divisors is an integer number (7555417857366).

Almost surely, 2^{30221020222331} is an apocalyptic number.

30221020222331 is a deficient number, since it is larger than the sum of its proper divisors (651207133).

30221020222331 is an equidigital number, since it uses as much as digits as its factorization.

30221020222331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651207132.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30221020222331 its reverse (13322202012203), we get a palindrome (43543222234534).

The spelling of 30221020222331 in words is "thirty trillion, two hundred twenty-one billion, twenty million, two hundred twenty-two thousand, three hundred thirty-one".