20121122212023 has 16 divisors (see below), whose sum is σ = 31030164377856. Its totient is φ = 11359256600640.

The previous prime is 20121122212021. The next prime is 20121122212027. The reversal of 20121122212023 is 32021222112102.

It is not a de Polignac number, because 20121122212023 - 2¹ = 20121122212021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121122212021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5771978238 + ... + 5771981723.

It is an arithmetic number, because the mean of its divisors is an integer number (1939385273616).

Almost surely, 2^{20121122212023} is an apocalyptic number.

20121122212023 is a deficient number, since it is larger than the sum of its proper divisors (10909042165833).

20121122212023 is a wasteful number, since it uses less digits than its factorization.

20121122212023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11543960054.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20121122212023 its reverse (32021222112102), we get a palindrome (52142344324125).

The spelling of 20121122212023 in words is "twenty trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred twelve thousand, twenty-three".