22156422105 has 32 divisors (see below), whose sum is σ = 35639585280. Its totient is φ = 11753772800.

The previous prime is 22156422073. The next prime is 22156422109. The reversal of 22156422105 is 50122465122.

It is not a de Polignac number, because 22156422105 - 2⁵ = 22156422073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22156422109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3628555 + ... + 3634655.

It is an arithmetic number, because the mean of its divisors is an integer number (1113737040).

Almost surely, 2^22156422105 is an apocalyptic number.

It is an amenable number.

22156422105 is a deficient number, since it is larger than the sum of its proper divisors (13483163175).

22156422105 is a wasteful number, since it uses less digits than its factorization.

22156422105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7361.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 22156422105 its reverse (50122465122), we get a palindrome (72278887227).

It can be divided in two parts, 2215 and 6422105, that added together give a triangular number (6424320 = T₃₅₈₄).

The spelling of 22156422105 in words is "twenty-two billion, one hundred fifty-six million, four hundred twenty-two thousand, one hundred five".