68722232101 has 4 divisors (see below), whose sum is σ = 68724028672. Its totient is φ = 68720435532.

The previous prime is 68722232099. The next prime is 68722232143. The reversal of 68722232101 is 10123222786.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68722232101 - 2¹ = 68722232099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68722232701) 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, 839631 + ... + 917836.

It is an arithmetic number, because the mean of its divisors is an integer number (17181007168).

Almost surely, 2^68722232101 is an apocalyptic number.

It is an amenable number.

68722232101 is a deficient number, since it is larger than the sum of its proper divisors (1796571).

68722232101 is a wasteful number, since it uses less digits than its factorization.

68722232101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796570.

The product of its (nonzero) digits is 16128, while the sum is 34.

Adding to 68722232101 its reverse (10123222786), we get a palindrome (78845454887).

The spelling of 68722232101 in words is "sixty-eight billion, seven hundred twenty-two million, two hundred thirty-two thousand, one hundred one".