100002210121201 has 4 divisors (see below), whose sum is σ = 100358089872804. Its totient is φ = 99646330369600.

The previous prime is 100002210121193. The next prime is 100002210121273. The reversal of 100002210121201 is 102121012200001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90626611079601 + 9375599041600 = 9519801^2 + 3061960^2 .

It is a cyclic number.

It is not a de Polignac number, because 100002210121201 - 2³ = 100002210121193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100002210122201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177939875380 + ... + 177939875941.

It is an arithmetic number, because the mean of its divisors is an integer number (25089522468201).

Almost surely, 2^{100002210121201} is an apocalyptic number.

It is an amenable number.

100002210121201 is a deficient number, since it is larger than the sum of its proper divisors (355879751603).

100002210121201 is an equidigital number, since it uses as much as digits as its factorization.

100002210121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355879751602.

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

Adding to 100002210121201 its reverse (102121012200001), we get a palindrome (202123222321202).

The spelling of 100002210121201 in words is "one hundred trillion, two billion, two hundred ten million, one hundred twenty-one thousand, two hundred one".