100122001100021 has 4 divisors (see below), whose sum is σ = 101094059363232. Its totient is φ = 99149942836812.

The previous prime is 100122001099999. The next prime is 100122001100027. The reversal of 100122001100021 is 120001100221001.

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 100122001100021 - 2⁴² = 95723954588917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100122001099975 and 100122001100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122001100027) 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, 486029131451 + ... + 486029131656.

It is an arithmetic number, because the mean of its divisors is an integer number (25273514840808).

Almost surely, 2^{100122001100021} is an apocalyptic number.

It is an amenable number.

100122001100021 is a deficient number, since it is larger than the sum of its proper divisors (972058263211).

100122001100021 is an equidigital number, since it uses as much as digits as its factorization.

100122001100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972058263210.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100122001100021 its reverse (120001100221001), we get a palindrome (220123101321022).

The spelling of 100122001100021 in words is "one hundred trillion, one hundred twenty-two billion, one million, one hundred thousand, twenty-one".