100122020021021 has 16 divisors (see below), whose sum is σ = 101211926457600. Its totient is φ = 99034083192000.

The previous prime is 100122020021011. The next prime is 100122020021027. The reversal of 100122020021021 is 120120020221001.

It is a cyclic number.

It is not a de Polignac number, because 100122020021021 - 2³⁴ = 100104840151837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100122020020987 and 100122020021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122020021027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 568855010 + ... + 569030988.

It is an arithmetic number, because the mean of its divisors is an integer number (6325745403600).

Almost surely, 2^{100122020021021} is an apocalyptic number.

It is an amenable number.

100122020021021 is a deficient number, since it is larger than the sum of its proper divisors (1089906436579).

100122020021021 is a wasteful number, since it uses less digits than its factorization.

100122020021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181540.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100122020021021 its reverse (120120020221001), we get a palindrome (220242040242022).

The spelling of 100122020021021 in words is "one hundred trillion, one hundred twenty-two billion, twenty million, twenty-one thousand, twenty-one".