101002100212021 has 4 divisors (see below), whose sum is σ = 106318000223200. Its totient is φ = 95686200200844.

The previous prime is 101002100212001. The next prime is 101002100212067. The reversal of 101002100212021 is 120212001200101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101002100212021 - 2¹⁹ = 101002099687733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101002100211992 and 101002100212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101002100212001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2657950005561 + ... + 2657950005598.

It is an arithmetic number, because the mean of its divisors is an integer number (26579500055800).

Almost surely, 2^{101002100212021} is an apocalyptic number.

It is an amenable number.

101002100212021 is a deficient number, since it is larger than the sum of its proper divisors (5315900011179).

101002100212021 is an equidigital number, since it uses as much as digits as its factorization.

101002100212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315900011178.

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

Adding to 101002100212021 its reverse (120212001200101), we get a palindrome (221214101412122).

The spelling of 101002100212021 in words is "one hundred one trillion, two billion, one hundred million, two hundred twelve thousand, twenty-one".