30221023122 has 12 divisors (see below), whose sum is σ = 65478883470. Its totient is φ = 10073674368.

The previous prime is 30221023117. The next prime is 30221023127. The reversal of 30221023122 is 22132012203.

It is an interprime number because it is at equal distance from previous prime (30221023117) and next prime (30221023127).

It can be written as a sum of positive squares in only one way, i.e., 28733301081 + 1487722041 = 169509^2 + 38571^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1678945729 = 30221023122 / (3 + 0 + 2 + 2 + 1 + 0 + 2 + 3 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 30221023095 and 30221023104.

It is not an unprimeable number, because it can be changed into a prime (30221023127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 839472847 + ... + 839472882.

Almost surely, 2^30221023122 is an apocalyptic number.

30221023122 is an abundant number, since it is smaller than the sum of its proper divisors (35257860348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30221023122 is a wasteful number, since it uses less digits than its factorization.

30221023122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678945737 (or 1678945734 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30221023122 its reverse (22132012203), we get a palindrome (52353035325).

The spelling of 30221023122 in words is "thirty billion, two hundred twenty-one million, twenty-three thousand, one hundred twenty-two".