100102210020221 has 4 divisors (see below), whose sum is σ = 100127216821632. Its totient is φ = 100077203218812.

The previous prime is 100102210020143. The next prime is 100102210020277. The reversal of 100102210020221 is 122020012201001.

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 a de Polignac number, because none of the positive numbers 2^k-100102210020221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100102210020196 and 100102210020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100102210080221) 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, 12503394701 + ... + 12503402706.

It is an arithmetic number, because the mean of its divisors is an integer number (25031804205408).

Almost surely, 2^{100102210020221} is an apocalyptic number.

It is an amenable number.

100102210020221 is a deficient number, since it is larger than the sum of its proper divisors (25006801411).

100102210020221 is an equidigital number, since it uses as much as digits as its factorization.

100102210020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25006801410.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100102210020221 its reverse (122020012201001), we get a palindrome (222122222221222).

The spelling of 100102210020221 in words is "one hundred trillion, one hundred two billion, two hundred ten million, twenty thousand, two hundred twenty-one".