121002542223 has 8 divisors (see below), whose sum is σ = 165697175088. Its totient is φ = 78488135424.

The previous prime is 121002542209. The next prime is 121002542257. The reversal of 121002542223 is 322245200121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121002542223 - 2²⁴ = 120985765007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121002542193 and 121002542202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002542123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545056386 + ... + 545056607.

It is an arithmetic number, because the mean of its divisors is an integer number (20712146886).

Almost surely, 2^121002542223 is an apocalyptic number.

121002542223 is a deficient number, since it is larger than the sum of its proper divisors (44694632865).

121002542223 is a wasteful number, since it uses less digits than its factorization.

121002542223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090113033.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 121002542223 its reverse (322245200121), we get a palindrome (443247742344).

The spelling of 121002542223 in words is "one hundred twenty-one billion, two million, five hundred forty-two thousand, two hundred twenty-three".