122120012012123 has 4 divisors (see below), whose sum is σ = 123329121042048. Its totient is φ = 120910902982200.

The previous prime is 122120012012087. The next prime is 122120012012147. The reversal of 122120012012123 is 321210210021221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122120012012123 - 2⁴⁶ = 51751267834459 is a prime.

It is a super-2 number, since 2×122120012012123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122120012012095 and 122120012012104.

It is not an unprimeable number, because it can be changed into a prime (122120012092123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604554514811 + ... + 604554515012.

It is an arithmetic number, because the mean of its divisors is an integer number (30832280260512).

Almost surely, 2^{122120012012123} is an apocalyptic number.

122120012012123 is a deficient number, since it is larger than the sum of its proper divisors (1209109029925).

122120012012123 is a wasteful number, since it uses less digits than its factorization.

122120012012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209109029924.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 122120012012123 its reverse (321210210021221), we get a palindrome (443330222033344).

The spelling of 122120012012123 in words is "one hundred twenty-two trillion, one hundred twenty billion, twelve million, twelve thousand, one hundred twenty-three".