30121221322 has 16 divisors (see below), whose sum is σ = 47685333600. Its totient is φ = 14230293840.

The previous prime is 30121221301. The next prime is 30121221391. The reversal of 30121221322 is 22312212103.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 30121221322.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031329 + ... + 1060132.

It is an arithmetic number, because the mean of its divisors is an integer number (2980333350).

Almost surely, 2^30121221322 is an apocalyptic number.

30121221322 is a deficient number, since it is larger than the sum of its proper divisors (17564112278).

30121221322 is a wasteful number, since it uses less digits than its factorization.

30121221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091861.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30121221322 its reverse (22312212103), we get a palindrome (52433433425).

The spelling of 30121221322 in words is "thirty billion, one hundred twenty-one million, two hundred twenty-one thousand, three hundred twenty-two".