4021551011 has 8 divisors (see below), whose sum is σ = 4108505280. Its totient is φ = 3935498112.

The previous prime is 4021550999. The next prime is 4021551041. The reversal of 4021551011 is 1101551204.

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

It is a cyclic number.

It is not a de Polignac number, because 4021551011 - 2²⁶ = 3954442147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021551041) 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, 216320 + ... + 234173.

It is an arithmetic number, because the mean of its divisors is an integer number (513563160).

Almost surely, 2^4021551011 is an apocalyptic number.

4021551011 is a deficient number, since it is larger than the sum of its proper divisors (86954269).

4021551011 is a wasteful number, since it uses less digits than its factorization.

4021551011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450685.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 4021551011 is about 63415.7000355590. The cubic root of 4021551011 is about 1590.2467888229.

The spelling of 4021551011 in words is "four billion, twenty-one million, five hundred fifty-one thousand, eleven".