100111223201021 has 8 divisors (see below), whose sum is σ = 106004722394880. Its totient is φ = 94218235530688.

The previous prime is 100111223200979. The next prime is 100111223201023. The reversal of 100111223201021 is 120102322111001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100111223201021 - 2³⁴ = 100094043331837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111223201023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127477901 + ... + 128260818.

It is an arithmetic number, because the mean of its divisors is an integer number (13250590299360).

Almost surely, 2^{100111223201021} is an apocalyptic number.

It is an amenable number.

100111223201021 is a deficient number, since it is larger than the sum of its proper divisors (5893499193859).

100111223201021 is a wasteful number, since it uses less digits than its factorization.

100111223201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255761763.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 100111223201021 its reverse (120102322111001), we get a palindrome (220213545312022).

The spelling of 100111223201021 in words is "one hundred trillion, one hundred eleven billion, two hundred twenty-three million, two hundred one thousand, twenty-one".