16221061412 has 12 divisors (see below), whose sum is σ = 28401072000. Its totient is φ = 8106469416.

The previous prime is 16221061403. The next prime is 16221061447. The reversal of 16221061412 is 21416012261.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006328 + ... + 1022319.

It is an arithmetic number, because the mean of its divisors is an integer number (2366756000).

Almost surely, 2^16221061412 is an apocalyptic number.

It is an amenable number.

16221061412 is a deficient number, since it is larger than the sum of its proper divisors (12180010588).

16221061412 is a wasteful number, since it uses less digits than its factorization.

16221061412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030650 (or 2030648 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 16221061412 its reverse (21416012261), we get a palindrome (37637073673).

The spelling of 16221061412 in words is "sixteen billion, two hundred twenty-one million, sixty-one thousand, four hundred twelve".