101002111100021 has 8 divisors (see below), whose sum is σ = 101110477877760. Its totient is φ = 100893772722528.

The previous prime is 101002111100003. The next prime is 101002111100027. The reversal of 101002111100021 is 120001111200101.

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-101002111100021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101002111099975 and 101002111100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101002111100027) 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, 20345 + ... + 14212833.

It is an arithmetic number, because the mean of its divisors is an integer number (12638809734720).

Almost surely, 2^{101002111100021} is an apocalyptic number.

It is an amenable number.

101002111100021 is a deficient number, since it is larger than the sum of its proper divisors (108366777739).

101002111100021 is a wasteful number, since it uses less digits than its factorization.

101002111100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14200123.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101002111100021 its reverse (120001111200101), we get a palindrome (221003222300122).

The spelling of 101002111100021 in words is "one hundred one trillion, two billion, one hundred eleven million, one hundred thousand, twenty-one".