10102240021 has 8 divisors (see below), whose sum is σ = 11161554624. Its totient is φ = 9094599360.

The previous prime is 10102239991. The next prime is 10102240033. The reversal of 10102240021 is 12004220101.

It is a happy number.

10102240021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10102240021 - 2⁷ = 10102239893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10102239983 and 10102240010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102240051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12918075 + ... + 12918856.

It is an arithmetic number, because the mean of its divisors is an integer number (1395194328).

Almost surely, 2^10102240021 is an apocalyptic number.

It is an amenable number.

10102240021 is a deficient number, since it is larger than the sum of its proper divisors (1059314603).

10102240021 is a wasteful number, since it uses less digits than its factorization.

10102240021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25836971.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10102240021 its reverse (12004220101), we get a palindrome (22106460122).

The spelling of 10102240021 in words is "ten billion, one hundred two million, two hundred forty thousand, twenty-one".