101002101220021 has 8 divisors (see below), whose sum is σ = 101150545583360. Its totient is φ = 100853682996528.

The previous prime is 101002101220001. The next prime is 101002101220079. The reversal of 101002101220021 is 120022101200101.

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 101002101220021 - 2¹³ = 101002101211829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101002101219983 and 101002101220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101002101220001) 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, 1205275 + ... + 14263831.

It is an arithmetic number, because the mean of its divisors is an integer number (12643818197920).

Almost surely, 2^{101002101220021} is an apocalyptic number.

It is an amenable number.

101002101220021 is a deficient number, since it is larger than the sum of its proper divisors (148444363339).

101002101220021 is a wasteful number, since it uses less digits than its factorization.

101002101220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13069923.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101002101220021 its reverse (120022101200101), we get a palindrome (221024202420122).

The spelling of 101002101220021 in words is "one hundred one trillion, two billion, one hundred one million, two hundred twenty thousand, twenty-one".