681130222101 has 32 divisors (see below), whose sum is σ = 1221073793280. Its totient is φ = 366322134528.

The previous prime is 681130222081. The next prime is 681130222139. The reversal of 681130222101 is 101222031186.

It is not a de Polignac number, because 681130222101 - 2¹⁸ = 681129959957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681130222901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105992776 + ... + 105999201.

It is an arithmetic number, because the mean of its divisors is an integer number (38158556040).

Almost surely, 2^681130222101 is an apocalyptic number.

It is an amenable number.

681130222101 is a deficient number, since it is larger than the sum of its proper divisors (539943571179).

681130222101 is a wasteful number, since it uses less digits than its factorization.

681130222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211992010 (or 211992004 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 681130222101 its reverse (101222031186), we get a palindrome (782352253287).

The spelling of 681130222101 in words is "six hundred eighty-one billion, one hundred thirty million, two hundred twenty-two thousand, one hundred one".