100210210021221 has 32 divisors (see below), whose sum is σ = 134414307360000. Its totient is φ = 66407135528448.

The previous prime is 100210210021193. The next prime is 100210210021247. The reversal of 100210210021221 is 122120012012001.

It is not a de Polignac number, because 100210210021221 - 2⁹ = 100210210020709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100210210021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100210210071221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3090125635 + ... + 3090158063.

It is an arithmetic number, because the mean of its divisors is an integer number (4200447105000).

Almost surely, 2^{100210210021221} is an apocalyptic number.

It is an amenable number.

100210210021221 is a deficient number, since it is larger than the sum of its proper divisors (34204097338779).

100210210021221 is a wasteful number, since it uses less digits than its factorization.

100210210021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37453.

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

Adding to 100210210021221 its reverse (122120012012001), we get a palindrome (222330222033222).

The spelling of 100210210021221 in words is "one hundred trillion, two hundred ten billion, two hundred ten million, twenty-one thousand, two hundred twenty-one".