30212121302 has 32 divisors (see below), whose sum is σ = 52659694080. Its totient is φ = 12847550080.

The previous prime is 30212121301. The next prime is 30212121343. The reversal of 30212121302 is 20312121203.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212121301) 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, 179402 + ... + 304317.

It is an arithmetic number, because the mean of its divisors is an integer number (1645615440).

Almost surely, 2^30212121302 is an apocalyptic number.

30212121302 is a deficient number, since it is larger than the sum of its proper divisors (22447572778).

30212121302 is a wasteful number, since it uses less digits than its factorization.

30212121302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483916.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30212121302 its reverse (20312121203), we get a palindrome (50524242505).

Subtracting from 30212121302 its reverse (20312121203), we obtain a palindrome (9900000099).

The spelling of 30212121302 in words is "thirty billion, two hundred twelve million, one hundred twenty-one thousand, three hundred two".