422121525 has 96 divisors (see below), whose sum is σ = 830304000. Its totient is φ = 189100800.

The previous prime is 422121517. The next prime is 422121529. The reversal of 422121525 is 525121224.

It is not a de Polignac number, because 422121525 - 2³ = 422121517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422121495 and 422121504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422121529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1569091 + ... + 1569359.

It is an arithmetic number, because the mean of its divisors is an integer number (8649000).

Almost surely, 2^422121525 is an apocalyptic number.

It is an amenable number.

422121525 is a deficient number, since it is larger than the sum of its proper divisors (408182475).

422121525 is a wasteful number, since it uses less digits than its factorization.

422121525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 345 counting only the distinct ones).

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

The square root of 422121525 is about 20545.5962434776. The cubic root of 422121525 is about 750.1460604422.

Adding to 422121525 its reverse (525121224), we get a palindrome (947242749).

The spelling of 422121525 in words is "four hundred twenty-two million, one hundred twenty-one thousand, five hundred twenty-five".