100002120011221 has 8 divisors (see below), whose sum is σ = 100078676755200. Its totient is φ = 99925564391280.

The previous prime is 100002120011219. The next prime is 100002120011231. The reversal of 100002120011221 is 122110021200001.

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 100002120011221 - 2¹ = 100002120011219 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 (100002120011231) 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, 300076116 + ... + 300409186.

It is an arithmetic number, because the mean of its divisors is an integer number (12509834594400).

Almost surely, 2^{100002120011221} is an apocalyptic number.

It is an amenable number.

100002120011221 is a deficient number, since it is larger than the sum of its proper divisors (76556743979).

100002120011221 is a wasteful number, since it uses less digits than its factorization.

100002120011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562019.

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

Adding to 100002120011221 its reverse (122110021200001), we get a palindrome (222112141211222).

The spelling of 100002120011221 in words is "one hundred trillion, two billion, one hundred twenty million, eleven thousand, two hundred twenty-one".