72242442301 has 2 divisors, whose sum is σ = 72242442302. Its totient is φ = 72242442300.

The previous prime is 72242442241. The next prime is 72242442353. The reversal of 72242442301 is 10324424227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72118565401 + 123876900 = 268549^2 + 11130^2 .

It is a cyclic number.

It is not a de Polignac number, because 72242442301 - 2¹³ = 72242434109 is a prime.

It is a super-2 number, since 2×72242442301² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72242442401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36121221150 + 36121221151.

It is an arithmetic number, because the mean of its divisors is an integer number (36121221151).

Almost surely, 2^72242442301 is an apocalyptic number.

It is an amenable number.

72242442301 is a deficient number, since it is larger than the sum of its proper divisors (1).

72242442301 is an equidigital number, since it uses as much as digits as its factorization.

72242442301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 31.

Adding to 72242442301 its reverse (10324424227), we get a palindrome (82566866528).

The spelling of 72242442301 in words is "seventy-two billion, two hundred forty-two million, four hundred forty-two thousand, three hundred one".