12202221522555 has 48 divisors (see below), whose sum is σ = 21969652330080. Its totient is φ = 6497234684928.

The previous prime is 12202221522553. The next prime is 12202221522563. The reversal of 12202221522555 is 55522512220221.

It is a happy number.

12202221522555 is a `hidden beast` number, since 1 + 2 + 202 + 221 + 5 + 225 + 5 + 5 = 666.

It is not a de Polignac number, because 12202221522555 - 2¹ = 12202221522553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12202221522553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7446870 + ... + 8936459.

It is an arithmetic number, because the mean of its divisors is an integer number (457701090210).

Almost surely, 2^{12202221522555} is an apocalyptic number.

12202221522555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12202221522555 is a deficient number, since it is larger than the sum of its proper divisors (9767430807525).

12202221522555 is an equidigital number, since it uses as much as digits as its factorization.

12202221522555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16383962 (or 16383950 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

Adding to 12202221522555 its reverse (55522512220221), we get a palindrome (67724733742776).

The spelling of 12202221522555 in words is "twelve trillion, two hundred two billion, two hundred twenty-one million, five hundred twenty-two thousand, five hundred fifty-five".