1202425521 has 48 divisors (see below), whose sum is σ = 1930521600. Its totient is φ = 662126080.

The previous prime is 1202425513. The next prime is 1202425531. The reversal of 1202425521 is 1255242021.

It is not a de Polignac number, because 1202425521 - 2³ = 1202425513 is a prime.

It is a super-3 number, since 3×1202425521³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1202425491 and 1202425500.

It is not an unprimeable number, because it can be changed into a prime (1202425501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175600 + ... + 182318.

It is an arithmetic number, because the mean of its divisors is an integer number (40219200).

Almost surely, 2^1202425521 is an apocalyptic number.

1202425521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1202425521 is a deficient number, since it is larger than the sum of its proper divisors (728096079).

1202425521 is a wasteful number, since it uses less digits than its factorization.

1202425521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6790 (or 6779 counting only the distinct ones).

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

The square root of 1202425521 is about 34676.0078584603. The cubic root of 1202425521 is about 1063.3740597428.

Adding to 1202425521 its reverse (1255242021), we get a palindrome (2457667542).

The spelling of 1202425521 in words is "one billion, two hundred two million, four hundred twenty-five thousand, five hundred twenty-one".