20100202100221 has 8 divisors (see below), whose sum is σ = 20886556078080. Its totient is φ = 19320064359792.

The previous prime is 20100202100197. The next prime is 20100202100227. The reversal of 20100202100221 is 12200120200102.

It is a happy number.

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 20100202100221 - 2¹⁷ = 20100201969149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100202100227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1554052765 + ... + 1554065698.

It is an arithmetic number, because the mean of its divisors is an integer number (2610819509760).

Almost surely, 2^{20100202100221} is an apocalyptic number.

It is an amenable number.

20100202100221 is a deficient number, since it is larger than the sum of its proper divisors (786353977859).

20100202100221 is a wasteful number, since it uses less digits than its factorization.

20100202100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108118715.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20100202100221 its reverse (12200120200102), we get a palindrome (32300322300323).

The spelling of 20100202100221 in words is "twenty trillion, one hundred billion, two hundred two million, one hundred thousand, two hundred twenty-one".