4055100021 has 12 divisors (see below), whose sum is σ = 6694133472. Its totient is φ = 2317199976.

The previous prime is 4055100019. The next prime is 4055100029. The reversal of 4055100021 is 1200015504.

It is not a de Polignac number, because 4055100021 - 2¹ = 4055100019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4055099967 and 4055100003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4055100029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32183271 + ... + 32183396.

It is an arithmetic number, because the mean of its divisors is an integer number (557844456).

Almost surely, 2^4055100021 is an apocalyptic number.

It is an amenable number.

4055100021 is a deficient number, since it is larger than the sum of its proper divisors (2639033451).

4055100021 is a wasteful number, since it uses less digits than its factorization.

4055100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64366680 (or 64366677 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 4055100021 is about 63679.6672494447. The cubic root of 4055100021 is about 1594.6566571953.

Adding to 4055100021 its reverse (1200015504), we get a palindrome (5255115525).

The spelling of 4055100021 in words is "four billion, fifty-five million, one hundred thousand, twenty-one".