4121155252 has 24 divisors (see below), whose sum is σ = 7836496640. Its totient is φ = 1889153280.

The previous prime is 4121155237. The next prime is 4121155253. The reversal of 4121155252 is 2525511214.

It is a super-2 number, since 2×4121155252² = 33967841222174367008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4121155252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4121155253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872253 + ... + 876964.

Almost surely, 2^4121155252 is an apocalyptic number.

It is an amenable number.

4121155252 is a deficient number, since it is larger than the sum of its proper divisors (3715341388).

4121155252 is a wasteful number, since it uses less digits than its factorization.

4121155252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749271 (or 1749269 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

The square root of 4121155252 is about 64196.2245930397. The cubic root of 4121155252 is about 1603.2687409727.

Adding to 4121155252 its reverse (2525511214), we get a palindrome (6646666466).

The spelling of 4121155252 in words is "four billion, one hundred twenty-one million, one hundred fifty-five thousand, two hundred fifty-two".