16121204322 has 32 divisors (see below), whose sum is σ = 34147633920. Its totient is φ = 5059668240.

The previous prime is 16121204269. The next prime is 16121204339. The reversal of 16121204322 is 22340212161.

It is a junction number, because it is equal to n+sod(n) for n = 16121204292 and 16121204301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415204 + ... + 452367.

It is an arithmetic number, because the mean of its divisors is an integer number (1067113560).

Almost surely, 2^16121204322 is an apocalyptic number.

16121204322 is an abundant number, since it is smaller than the sum of its proper divisors (18026429598).

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

16121204322 is a wasteful number, since it uses less digits than its factorization.

16121204322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867758.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 16121204322 its reverse (22340212161), we get a palindrome (38461416483).

The spelling of 16121204322 in words is "sixteen billion, one hundred twenty-one million, two hundred four thousand, three hundred twenty-two".