3812110021 has 4 divisors (see below), whose sum is σ = 3935081344. Its totient is φ = 3689138700.

The previous prime is 3812110009. The next prime is 3812110067. The reversal of 3812110021 is 1200112183.

3812110021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3812110021 - 2¹¹ = 3812107973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3812113021) 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, 61485615 + ... + 61485676.

It is an arithmetic number, because the mean of its divisors is an integer number (983770336).

Almost surely, 2^3812110021 is an apocalyptic number.

3812110021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3812110021 is a deficient number, since it is larger than the sum of its proper divisors (122971323).

3812110021 is a wasteful number, since it uses less digits than its factorization.

3812110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122971322.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 3812110021 is about 61742.2871377470. The cubic root of 3812110021 is about 1562.1466749765.

The spelling of 3812110021 in words is "three billion, eight hundred twelve million, one hundred ten thousand, twenty-one".