15222682081 has 2 divisors, whose sum is σ = 15222682082. Its totient is φ = 15222682080.

The previous prime is 15222682063. The next prime is 15222682103. The reversal of 15222682081 is 18028622251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13629395025 + 1593287056 = 116745^2 + 39916^2 .

It is an emirp because it is prime and its reverse (18028622251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15222682081 - 2⁵ = 15222682049 is a prime.

It is a super-2 number, since 2×15222682081² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15222682081.

It is not a weakly prime, because it can be changed into another prime (15222682021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7611341040 + 7611341041.

It is an arithmetic number, because the mean of its divisors is an integer number (7611341041).

Almost surely, 2^15222682081 is an apocalyptic number.

It is an amenable number.

15222682081 is a deficient number, since it is larger than the sum of its proper divisors (1).

15222682081 is an equidigital number, since it uses as much as digits as its factorization.

15222682081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 15222682081 in words is "fifteen billion, two hundred twenty-two million, six hundred eighty-two thousand, eighty-one".