100202200221 has 4 divisors (see below), whose sum is σ = 133602933632. Its totient is φ = 66801466812.

The previous prime is 100202200211. The next prime is 100202200253. The reversal of 100202200221 is 122002202001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122002202001 = 3 ⋅40667400667.

It is not a de Polignac number, because 100202200221 - 2¹⁰ = 100202199197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100202200197 and 100202200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100202200211) 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, 16700366701 + ... + 16700366706.

It is an arithmetic number, because the mean of its divisors is an integer number (33400733408).

Almost surely, 2^100202200221 is an apocalyptic number.

It is an amenable number.

100202200221 is a deficient number, since it is larger than the sum of its proper divisors (33400733411).

100202200221 is an equidigital number, since it uses as much as digits as its factorization.

100202200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33400733410.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 100202200221 its reverse (122002202001), we get a palindrome (222204402222).

The spelling of 100202200221 in words is "one hundred billion, two hundred two million, two hundred thousand, two hundred twenty-one".