25220130101 has 2 divisors, whose sum is σ = 25220130102. Its totient is φ = 25220130100.

The previous prime is 25220130059. The next prime is 25220130203. The reversal of 25220130101 is 10103102252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22973464900 + 2246665201 = 151570^2 + 47399^2 .

It is a cyclic number.

It is not a de Polignac number, because 25220130101 - 2¹⁸ = 25219867957 is a prime.

It is a super-2 number, since 2×25220130101² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25220130101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25220150101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12610065050 + 12610065051.

It is an arithmetic number, because the mean of its divisors is an integer number (12610065051).

Almost surely, 2^25220130101 is an apocalyptic number.

It is an amenable number.

25220130101 is a deficient number, since it is larger than the sum of its proper divisors (1).

25220130101 is an equidigital number, since it uses as much as digits as its factorization.

25220130101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 25220130101 its reverse (10103102252), we get a palindrome (35323232353).

The spelling of 25220130101 in words is "twenty-five billion, two hundred twenty million, one hundred thirty thousand, one hundred one".