10221555055 has 16 divisors (see below), whose sum is σ = 12347697024. Its totient is φ = 8122858240.

The previous prime is 10221555053. The next prime is 10221555089. The reversal of 10221555055 is 55055512201.

It is not a de Polignac number, because 10221555055 - 2¹ = 10221555053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221555053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491937 + ... + 512293.

It is an arithmetic number, because the mean of its divisors is an integer number (771731064).

Almost surely, 2^10221555055 is an apocalyptic number.

10221555055 is a deficient number, since it is larger than the sum of its proper divisors (2126141969).

10221555055 is a wasteful number, since it uses less digits than its factorization.

10221555055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21026.

The product of its (nonzero) digits is 12500, while the sum is 31.

The spelling of 10221555055 in words is "ten billion, two hundred twenty-one million, five hundred fifty-five thousand, fifty-five".