722305101 has 16 divisors (see below), whose sum is σ = 1102608000. Its totient is φ = 412013568.

The previous prime is 722305097. The next prime is 722305139. The reversal of 722305101 is 101503227.

It is not a de Polignac number, because 722305101 - 2² = 722305097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722305141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18276 + ... + 42173.

It is an arithmetic number, because the mean of its divisors is an integer number (68913000).

Almost surely, 2^722305101 is an apocalyptic number.

It is an amenable number.

722305101 is a deficient number, since it is larger than the sum of its proper divisors (380302899).

722305101 is a wasteful number, since it uses less digits than its factorization.

722305101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61028.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 722305101 is about 26875.7344271743. The cubic root of 722305101 is about 897.2364202466.

Adding to 722305101 its reverse (101503227), we get a palindrome (823808328).

The spelling of 722305101 in words is "seven hundred twenty-two million, three hundred five thousand, one hundred one".