121100020223 has 12 divisors (see below), whose sum is σ = 149865115248. Its totient is φ = 95815399680.

The previous prime is 121100020103. The next prime is 121100020231. The reversal of 121100020223 is 322020001121.

It is a happy number.

It is not a de Polignac number, because 121100020223 - 2²⁰ = 121098971647 is a prime.

It is a super-2 number, since 2×121100020223² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121100020198 and 121100020207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100020253) 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 11 ways as a sum of consecutive naturals, for example, 51182258 + ... + 51184623.

It is an arithmetic number, because the mean of its divisors is an integer number (12488759604).

Almost surely, 2^121100020223 is an apocalyptic number.

121100020223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121100020223 is a deficient number, since it is larger than the sum of its proper divisors (28765095025).

121100020223 is a wasteful number, since it uses less digits than its factorization.

121100020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102366914 (or 102366901 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 121100020223 its reverse (322020001121), we get a palindrome (443120021344).

The spelling of 121100020223 in words is "one hundred twenty-one billion, one hundred million, twenty thousand, two hundred twenty-three".