100021222200121 has 8 divisors (see below), whose sum is σ = 102478705394688. Its totient is φ = 97564593348000.

The previous prime is 100021222200101. The next prime is 100021222200139. The reversal of 100021222200121 is 121002222120001.

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 100021222200121 - 2³⁷ = 99883783246649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100021222200095 and 100021222200104.

It is not an unprimeable number, because it can be changed into a prime (100021222200101) 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 7 ways as a sum of consecutive naturals, for example, 213348585 + ... + 213816886.

It is an arithmetic number, because the mean of its divisors is an integer number (12809838174336).

Almost surely, 2^{100021222200121} is an apocalyptic number.

It is an amenable number.

100021222200121 is a deficient number, since it is larger than the sum of its proper divisors (2457483194567).

100021222200121 is an equidigital number, since it uses as much as digits as its factorization.

100021222200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427171223.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100021222200121 its reverse (121002222120001), we get a palindrome (221023444320122).

The spelling of 100021222200121 in words is "one hundred trillion, twenty-one billion, two hundred twenty-two million, two hundred thousand, one hundred twenty-one".