100210111222121 has 4 divisors (see below), whose sum is σ = 100210698697872. Its totient is φ = 100209523746372.

The previous prime is 100210111222079. The next prime is 100210111222129. The reversal of 100210111222121 is 121222111012001.

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 100210111222121 - 2¹⁸ = 100210110959977 is a prime.

It is a super-2 number, since 2×100210111222121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100210111222121.

It is not an unprimeable number, because it can be changed into a prime (100210111222129) 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 3 ways as a sum of consecutive naturals, for example, 293481935 + ... + 293823188.

It is an arithmetic number, because the mean of its divisors is an integer number (25052674674468).

Almost surely, 2^{100210111222121} is an apocalyptic number.

It is an amenable number.

100210111222121 is a deficient number, since it is larger than the sum of its proper divisors (587475751).

100210111222121 is an equidigital number, since it uses as much as digits as its factorization.

100210111222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587475750.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 100210111222121 its reverse (121222111012001), we get a palindrome (221432222234122).

The spelling of 100210111222121 in words is "one hundred trillion, two hundred ten billion, one hundred eleven million, two hundred twenty-two thousand, one hundred twenty-one".