4101442021 has 4 divisors (see below), whose sum is σ = 4131379692. Its totient is φ = 4071504352.

The previous prime is 4101441991. The next prime is 4101442027. The reversal of 4101442021 is 1202441014.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3071930625 + 1029511396 = 55425^2 + 32086^2 .

It is a cyclic number.

It is not a de Polignac number, because 4101442021 - 2⁵ = 4101441989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4101442021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4101442027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14968630 + ... + 14968903.

It is an arithmetic number, because the mean of its divisors is an integer number (1032844923).

Almost surely, 2^4101442021 is an apocalyptic number.

It is an amenable number.

4101442021 is a deficient number, since it is larger than the sum of its proper divisors (29937671).

4101442021 is a wasteful number, since it uses less digits than its factorization.

4101442021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29937670.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 4101442021 is about 64042.5016766210. The cubic root of 4101442021 is about 1600.7082828977.

Adding to 4101442021 its reverse (1202441014), we get a palindrome (5303883035).

The spelling of 4101442021 in words is "four billion, one hundred one million, four hundred forty-two thousand, twenty-one".