101002102021 has 8 divisors (see below), whose sum is σ = 101370101184. Its totient is φ = 100634181600.

The previous prime is 101002102009. The next prime is 101002102027. The reversal of 101002102021 is 120201200101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101002102021 is a prime.

It is a super-2 number, since 2×101002102021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101002101989 and 101002102007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101002102027) 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, 4101696 + ... + 4126246.

It is an arithmetic number, because the mean of its divisors is an integer number (12671262648).

Almost surely, 2^101002102021 is an apocalyptic number.

It is an amenable number.

101002102021 is a deficient number, since it is larger than the sum of its proper divisors (367999163).

101002102021 is a wasteful number, since it uses less digits than its factorization.

101002102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39371.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101002102021 its reverse (120201200101), we get a palindrome (221203302122).

The spelling of 101002102021 in words is "one hundred one billion, two million, one hundred two thousand, twenty-one".