4212504021 has 16 divisors (see below), whose sum is σ = 6175531008. Its totient is φ = 2532927600.

The previous prime is 4212503957. The next prime is 4212504031. The reversal of 4212504021 is 1204052124.

It is not a de Polignac number, because 4212504021 - 2⁶ = 4212503957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4212504031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498375 + ... + 506756.

It is an arithmetic number, because the mean of its divisors is an integer number (385970688).

Almost surely, 2^4212504021 is an apocalyptic number.

It is an amenable number.

4212504021 is a deficient number, since it is larger than the sum of its proper divisors (1963026987).

4212504021 is a wasteful number, since it uses less digits than its factorization.

4212504021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005272.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4212504021 is about 64903.8059053550. The cubic root of 4212504021 is about 1615.0281982507.

Adding to 4212504021 its reverse (1204052124), we get a palindrome (5416556145).

The spelling of 4212504021 in words is "four billion, two hundred twelve million, five hundred four thousand, twenty-one".