100121201021223 has 24 divisors (see below), whose sum is σ = 148539999550800. Its totient is φ = 64938299716224.

The previous prime is 100121201021201. The next prime is 100121201021251. The reversal of 100121201021223 is 322120102121001.

100121201021223 is a `hidden beast` number, since 100 + 121 + 201 + 0 + 21 + 223 = 666.

It is not a de Polignac number, because 100121201021223 - 2¹⁰ = 100121201020199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100121201021196 and 100121201021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121201521223) 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 23 ways as a sum of consecutive naturals, for example, 7813678 + ... + 16164651.

It is an arithmetic number, because the mean of its divisors is an integer number (6189166647950).

Almost surely, 2^{100121201021223} is an apocalyptic number.

100121201021223 is a deficient number, since it is larger than the sum of its proper divisors (48418798529577).

100121201021223 is a wasteful number, since it uses less digits than its factorization.

100121201021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23990911 (or 23990908 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 100121201021223 its reverse (322120102121001), we get a palindrome (422241303142224).

The spelling of 100121201021223 in words is "one hundred trillion, one hundred twenty-one billion, two hundred one million, twenty-one thousand, two hundred twenty-three".