100202001022001 has 4 divisors (see below), whose sum is σ = 104558609762112. Its totient is φ = 95845392281892.

The previous prime is 100202001021943. The next prime is 100202001022031. The reversal of 100202001022001 is 100220100202001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100202001022001 - 2¹⁰ = 100202001020977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100202001022031) 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, 2178304370021 + ... + 2178304370066.

It is an arithmetic number, because the mean of its divisors is an integer number (26139652440528).

Almost surely, 2^{100202001022001} is an apocalyptic number.

It is an amenable number.

100202001022001 is a deficient number, since it is larger than the sum of its proper divisors (4356608740111).

100202001022001 is an equidigital number, since it uses as much as digits as its factorization.

100202001022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356608740110.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100202001022001 its reverse (100220100202001), we get a palindrome (200422101224002).

The spelling of 100202001022001 in words is "one hundred trillion, two hundred two billion, one million, twenty-two thousand, one".