16121005622 has 8 divisors (see below), whose sum is σ = 24193503336. Its totient is φ = 8056504512.

The previous prime is 16121005603. The next prime is 16121005627. The reversal of 16121005622 is 22650012161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16121005591 and 16121005600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16121005627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1994108 + ... + 2002175.

It is an arithmetic number, because the mean of its divisors is an integer number (3024187917).

Almost surely, 2^16121005622 is an apocalyptic number.

16121005622 is a deficient number, since it is larger than the sum of its proper divisors (8072497714).

16121005622 is a wasteful number, since it uses less digits than its factorization.

16121005622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3998302.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 16121005622 its reverse (22650012161), we get a palindrome (38771017783).

The spelling of 16121005622 in words is "sixteen billion, one hundred twenty-one million, five thousand, six hundred twenty-two".