305049202122 has 64 divisors (see below), whose sum is σ = 724922440704. Its totient is φ = 83761983360.

The previous prime is 305049202111. The next prime is 305049202123. The reversal of 305049202122 is 221202940503.

It is a self number, because there is not a number n which added to its sum of digits gives 305049202122.

It is not an unprimeable number, because it can be changed into a prime (305049202123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1206628 + ... + 1437375.

It is an arithmetic number, because the mean of its divisors is an integer number (11326913136).

Almost surely, 2^305049202122 is an apocalyptic number.

305049202122 is an abundant number, since it is smaller than the sum of its proper divisors (419873238582).

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

305049202122 is a wasteful number, since it uses less digits than its factorization.

305049202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644123.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 305049202122 in words is "three hundred five billion, forty-nine million, two hundred two thousand, one hundred twenty-two".