100021110220221 has 32 divisors (see below), whose sum is σ = 140436357590400. Its totient is φ = 63146097780480.

The previous prime is 100021110220111. The next prime is 100021110220231. The reversal of 100021110220221 is 122022011120001.

It is not a de Polignac number, because 100021110220221 - 2¹³ = 100021110212029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100021110220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021110220231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3397787715 + ... + 3397817151.

It is an arithmetic number, because the mean of its divisors is an integer number (4388636174700).

Almost surely, 2^{100021110220221} is an apocalyptic number.

It is an amenable number.

100021110220221 is a deficient number, since it is larger than the sum of its proper divisors (40415247370179).

100021110220221 is a wasteful number, since it uses less digits than its factorization.

100021110220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51149.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100021110220221 its reverse (122022011120001), we get a palindrome (222043121340222).

The spelling of 100021110220221 in words is "one hundred trillion, twenty-one billion, one hundred ten million, two hundred twenty thousand, two hundred twenty-one".