4021412421 has 8 divisors (see below), whose sum is σ = 5774335840. Its totient is φ = 2474715312.

The previous prime is 4021412413. The next prime is 4021412429. The reversal of 4021412421 is 1242141204.

It is an interprime number because it is at equal distance from previous prime (4021412413) and next prime (4021412429).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4021412421 - 2³ = 4021412413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021412429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51556531 + ... + 51556608.

It is an arithmetic number, because the mean of its divisors is an integer number (721791980).

Almost surely, 2^4021412421 is an apocalyptic number.

It is an amenable number.

4021412421 is a deficient number, since it is larger than the sum of its proper divisors (1752923419).

4021412421 is a wasteful number, since it uses less digits than its factorization.

4021412421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103113155.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4021412421 is about 63414.6073156651. The cubic root of 4021412421 is about 1590.2285210092.

Adding to 4021412421 its reverse (1242141204), we get a palindrome (5263553625).

The spelling of 4021412421 in words is "four billion, twenty-one million, four hundred twelve thousand, four hundred twenty-one".