100600622261 has 4 divisors (see below), whose sum is σ = 100601260524. Its totient is φ = 100599984000.

The previous prime is 100600622197. The next prime is 100600622263. The reversal of 100600622261 is 162226006001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 162226006001 = 103 ⋅1575009767.

It can be written as a sum of positive squares in 2 ways, for example, as 1623687025 + 98976935236 = 40295^2 + 314606^2 .

It is a cyclic number.

It is not a de Polignac number, because 100600622261 - 2⁶ = 100600622197 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 100600622261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100600622263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106661 + ... + 461061.

It is an arithmetic number, because the mean of its divisors is an integer number (25150315131).

Almost surely, 2^100600622261 is an apocalyptic number.

It is an amenable number.

100600622261 is a deficient number, since it is larger than the sum of its proper divisors (638263).

100600622261 is an equidigital number, since it uses as much as digits as its factorization.

100600622261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638262.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 100600622261 its reverse (162226006001), we get a palindrome (262826628262).

The spelling of 100600622261 in words is "one hundred billion, six hundred million, six hundred twenty-two thousand, two hundred sixty-one".