126227695901 has 4 divisors (see below), whose sum is σ = 130580375100. Its totient is φ = 121875016704.

The previous prime is 126227695883. The next prime is 126227695921. The reversal of 126227695901 is 109596722621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 109596722621 = 19 ⋅5768248559.

It can be written as a sum of positive squares in 2 ways, for example, as 93101875876 + 33125820025 = 305126^2 + 182005^2 .

It is a cyclic number.

It is not a de Polignac number, because 126227695901 - 2⁶ = 126227695837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126227695901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126227695921) 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 in 3 ways as a sum of consecutive naturals, for example, 2176339556 + ... + 2176339613.

It is an arithmetic number, because the mean of its divisors is an integer number (32645093775).

Almost surely, 2^126227695901 is an apocalyptic number.

It is an amenable number.

126227695901 is a deficient number, since it is larger than the sum of its proper divisors (4352679199).

126227695901 is an equidigital number, since it uses as much as digits as its factorization.

126227695901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352679198.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 126227695901 in words is "one hundred twenty-six billion, two hundred twenty-seven million, six hundred ninety-five thousand, nine hundred one".