1021232125 has 16 divisors (see below), whose sum is σ = 1286887680. Its totient is φ = 809043600.

The previous prime is 1021232119. The next prime is 1021232203. The reversal of 1021232125 is 5212321201.

It is not a de Polignac number, because 1021232125 - 2³ = 1021232117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26785 + ... + 52534.

It is an arithmetic number, because the mean of its divisors is an integer number (80430480).

Almost surely, 2^1021232125 is an apocalyptic number.

It is an amenable number.

1021232125 is a deficient number, since it is larger than the sum of its proper divisors (265655555).

1021232125 is an equidigital number, since it uses as much as digits as its factorization.

1021232125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79437 (or 79427 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1021232125 is about 31956.7226886613. The cubic root of 1021232125 is about 1007.0278683620.

Adding to 1021232125 its reverse (5212321201), we get a palindrome (6233553326).

The spelling of 1021232125 in words is "one billion, twenty-one million, two hundred thirty-two thousand, one hundred twenty-five".