1001122525 has 24 divisors (see below), whose sum is σ = 1380022784. Its totient is φ = 715435200.

The previous prime is 1001122501. The next prime is 1001122531. The reversal of 1001122525 is 5252211001.

It is not a de Polignac number, because 1001122525 - 2¹³ = 1001114333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39609 + ... + 59758.

Almost surely, 2^1001122525 is an apocalyptic number.

It is an amenable number.

1001122525 is a deficient number, since it is larger than the sum of its proper divisors (378900259).

1001122525 is a wasteful number, since it uses less digits than its factorization.

1001122525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99421 (or 99416 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1001122525 is about 31640.5203022959. The cubic root of 1001122525 is about 1000.3740350803.

Adding to 1001122525 its reverse (5252211001), we get a palindrome (6253333526).

The spelling of 1001122525 in words is "one billion, one million, one hundred twenty-two thousand, five hundred twenty-five".