122021112210123 has 32 divisors (see below), whose sum is σ = 189075164382720. Its totient is φ = 68559279310080.

The previous prime is 122021112210119. The next prime is 122021112210149. The reversal of 122021112210123 is 321012211120221.

It is not a de Polignac number, because 122021112210123 - 2² = 122021112210119 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 122021112210123.

It is not an unprimeable number, because it can be changed into a prime (122021112210103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203164290 + ... + 203764007.

It is an arithmetic number, because the mean of its divisors is an integer number (5908598886960).

Almost surely, 2^{122021112210123} is an apocalyptic number.

122021112210123 is a deficient number, since it is larger than the sum of its proper divisors (67054052172597).

122021112210123 is a wasteful number, since it uses less digits than its factorization.

122021112210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406928547.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 122021112210123 its reverse (321012211120221), we get a palindrome (443033323330344).

The spelling of 122021112210123 in words is "one hundred twenty-two trillion, twenty-one billion, one hundred twelve million, two hundred ten thousand, one hundred twenty-three".