1025025122 has 24 divisors (see below), whose sum is σ = 1691748828. Its totient is φ = 465444320.

The previous prime is 1025025121. The next prime is 1025025139. The reversal of 1025025122 is 2215205201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1016908321 + 8116801 = 31889^2 + 2849^2 .

It is a super-3 number, since 3×1025025122³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1025025094 and 1025025103.

It is not an unprimeable number, because it can be changed into a prime (1025025121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 359888 + ... + 362724.

Almost surely, 2^1025025122 is an apocalyptic number.

1025025122 is a deficient number, since it is larger than the sum of its proper divisors (666723706).

1025025122 is a wasteful number, since it uses less digits than its factorization.

1025025122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354 (or 4343 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1025025122 is about 32016.0135244849. The cubic root of 1025025122 is about 1008.2730748196.

It can be divided in two parts, 10250251 and 22, that multiplied together give a palindrome (225505522).

The spelling of 1025025122 in words is "one billion, twenty-five million, twenty-five thousand, one hundred twenty-two".