121020111100223 has 8 divisors (see below), whose sum is σ = 128162159046720. Its totient is φ = 113880642918400.

The previous prime is 121020111100219. The next prime is 121020111100289. The reversal of 121020111100223 is 322001111020121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121020111100223 - 2² = 121020111100219 is a prime.

It is a super-3 number, since 3×121020111100223³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020111100423) 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, 644844578 + ... + 645032223.

It is an arithmetic number, because the mean of its divisors is an integer number (16020269880840).

Almost surely, 2^{121020111100223} is an apocalyptic number.

121020111100223 is a deficient number, since it is larger than the sum of its proper divisors (7142047946497).

121020111100223 is a wasteful number, since it uses less digits than its factorization.

121020111100223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289882337.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121020111100223 its reverse (322001111020121), we get a palindrome (443021222120344).

The spelling of 121020111100223 in words is "one hundred twenty-one trillion, twenty billion, one hundred eleven million, one hundred thousand, two hundred twenty-three".