4221502101 has 24 divisors (see below), whose sum is σ = 6478519320. Its totient is φ = 2639717376.

The previous prime is 4221502079. The next prime is 4221502111. The reversal of 4221502101 is 1012051224.

4221502101 is a `hidden beast` number, since 42 + 21 + 502 + 101 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1540955025 + 2680547076 = 39255^2 + 51774^2 .

It is not a de Polignac number, because 4221502101 - 2⁶ = 4221502037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221502111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2256 + ... + 91913.

It is an arithmetic number, because the mean of its divisors is an integer number (269938305).

Almost surely, 2^4221502101 is an apocalyptic number.

It is an amenable number.

4221502101 is a deficient number, since it is larger than the sum of its proper divisors (2257017219).

4221502101 is a wasteful number, since it uses less digits than its factorization.

4221502101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94485 (or 94482 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 4221502101 is about 64973.0875132158. The cubic root of 4221502101 is about 1616.1773024438.

Adding to 4221502101 its reverse (1012051224), we get a palindrome (5233553325).

The spelling of 4221502101 in words is "four billion, two hundred twenty-one million, five hundred two thousand, one hundred one".