100020002111221 has 8 divisors (see below), whose sum is σ = 100308037088000. Its totient is φ = 99731975390640.

The previous prime is 100020002111213. The next prime is 100020002111243. The reversal of 100020002111221 is 122111200020001.

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 100020002111221 - 2³ = 100020002111213 is a prime.

It is a super-2 number, since 2×100020002111221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020002111251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22624456 + ... + 26681566.

It is an arithmetic number, because the mean of its divisors is an integer number (12538504636000).

Almost surely, 2^{100020002111221} is an apocalyptic number.

It is an amenable number.

100020002111221 is a deficient number, since it is larger than the sum of its proper divisors (288034976779).

100020002111221 is an equidigital number, since it uses as much as digits as its factorization.

100020002111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128099.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100020002111221 its reverse (122111200020001), we get a palindrome (222131202131222).

The spelling of 100020002111221 in words is "one hundred trillion, twenty billion, two million, one hundred eleven thousand, two hundred twenty-one".