22011345555 has 16 divisors (see below), whose sum is σ = 36354223104. Its totient is φ = 11360694240.

The previous prime is 22011345541. The next prime is 22011345599. The reversal of 22011345555 is 55554311022.

It is not a de Polignac number, because 22011345555 - 2⁵ = 22011345523 is a prime.

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, 23667649 + ... + 23668578.

It is an arithmetic number, because the mean of its divisors is an integer number (2272138944).

Almost surely, 2^22011345555 is an apocalyptic number.

22011345555 is a deficient number, since it is larger than the sum of its proper divisors (14342877549).

22011345555 is a wasteful number, since it uses less digits than its factorization.

22011345555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47336266.

The product of its (nonzero) digits is 30000, while the sum is 33.

Adding to 22011345555 its reverse (55554311022), we get a palindrome (77565656577).

The spelling of 22011345555 in words is "twenty-two billion, eleven million, three hundred forty-five thousand, five hundred fifty-five".