121100022223 has 32 divisors (see below), whose sum is σ = 131307480000. Its totient is φ = 111277056000.

The previous prime is 121100022203. The next prime is 121100022283. The reversal of 121100022223 is 322220001121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-121100022223 is a prime.

It is a super-2 number, since 2×121100022223² (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 = 121100022197 and 121100022206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100022203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40351723 + ... + 40354723.

It is an arithmetic number, because the mean of its divisors is an integer number (4103358750).

Almost surely, 2^121100022223 is an apocalyptic number.

121100022223 is a deficient number, since it is larger than the sum of its proper divisors (10207457777).

121100022223 is a wasteful number, since it uses less digits than its factorization.

121100022223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 121100022223 its reverse (322220001121), we get a palindrome (443320023344).

The spelling of 121100022223 in words is "one hundred twenty-one billion, one hundred million, twenty-two thousand, two hundred twenty-three".