122011211342123 has 4 divisors (see below), whose sum is σ = 128432854044360. Its totient is φ = 115589568639888.

The previous prime is 122011211342117. The next prime is 122011211342243. The reversal of 122011211342123 is 321243112110221.

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 122011211342123 - 2¹⁰ = 122011211341099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122011211342092 and 122011211342101.

It is not an unprimeable number, because it can be changed into a prime (122011201342123) 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, 3210821351090 + ... + 3210821351127.

It is an arithmetic number, because the mean of its divisors is an integer number (32108213511090).

Almost surely, 2^{122011211342123} is an apocalyptic number.

122011211342123 is a deficient number, since it is larger than the sum of its proper divisors (6421642702237).

122011211342123 is an equidigital number, since it uses as much as digits as its factorization.

122011211342123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6421642702236.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 122011211342123 its reverse (321243112110221), we get a palindrome (443254323452344).

The spelling of 122011211342123 in words is "one hundred twenty-two trillion, eleven billion, two hundred eleven million, three hundred forty-two thousand, one hundred twenty-three".