30321202122 has 32 divisors (see below), whose sum is σ = 68047594560. Its totient is φ = 10006995600.

The previous prime is 30321202103. The next prime is 30321202123. The reversal of 30321202122 is 22120212303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30321202095 and 30321202104.

It is not an unprimeable number, because it can be changed into a prime (30321202123) 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, 2774268 + ... + 2785175.

It is an arithmetic number, because the mean of its divisors is an integer number (2126487330).

Almost surely, 2^30321202122 is an apocalyptic number.

30321202122 is an abundant number, since it is smaller than the sum of its proper divisors (37726392438).

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

30321202122 is a wasteful number, since it uses less digits than its factorization.

30321202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559555 (or 5559549 counting only the distinct ones).

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

Adding to 30321202122 its reverse (22120212303), we get a palindrome (52441414425).

The spelling of 30321202122 in words is "thirty billion, three hundred twenty-one million, two hundred two thousand, one hundred twenty-two".