125422020105 has 32 divisors (see below), whose sum is σ = 207659289600. Its totient is φ = 64565152512.

The previous prime is 125422020103. The next prime is 125422020133. The reversal of 125422020105 is 501020224521.

It is not a de Polignac number, because 125422020105 - 2¹ = 125422020103 is a prime.

It is a super-2 number, since 2×125422020105² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125422020103) 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, 1418247 + ... + 1504083.

It is an arithmetic number, because the mean of its divisors is an integer number (6489352800).

Almost surely, 2^125422020105 is an apocalyptic number.

125422020105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125422020105 is a deficient number, since it is larger than the sum of its proper divisors (82237269495).

125422020105 is a wasteful number, since it uses less digits than its factorization.

125422020105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89233.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 125422020105 its reverse (501020224521), we get a palindrome (626442244626).

The spelling of 125422020105 in words is "one hundred twenty-five billion, four hundred twenty-two million, twenty thousand, one hundred five".