121020221002023 has 24 divisors (see below), whose sum is σ = 201216674422400. Its totient is φ = 68656898240784.

The previous prime is 121020221001971. The next prime is 121020221002069. The reversal of 121020221002023 is 320200122020121.

121020221002023 is a `hidden beast` number, since 1 + 210 + 202 + 210 + 0 + 20 + 23 = 666.

It is not a de Polignac number, because 121020221002023 - 2¹⁷ = 121020220870951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121020221001987 and 121020221002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020221002123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6909904513 + ... + 6909922026.

Almost surely, 2^{121020221002023} is an apocalyptic number.

121020221002023 is a deficient number, since it is larger than the sum of its proper divisors (80196453420377).

121020221002023 is a wasteful number, since it uses less digits than its factorization.

121020221002023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13819826691 (or 13819826688 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121020221002023 its reverse (320200122020121), we get a palindrome (441220343022144).

The spelling of 121020221002023 in words is "one hundred twenty-one trillion, twenty billion, two hundred twenty-one million, two thousand, twenty-three".