122011412421 has 4 divisors (see below), whose sum is σ = 162681883232. Its totient is φ = 81340941612.

The previous prime is 122011412371. The next prime is 122011412423. The reversal of 122011412421 is 124214110221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122011412421 - 2⁷ = 122011412293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011412423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20335235401 + ... + 20335235406.

It is an arithmetic number, because the mean of its divisors is an integer number (40670470808).

Almost surely, 2^122011412421 is an apocalyptic number.

It is an amenable number.

122011412421 is a deficient number, since it is larger than the sum of its proper divisors (40670470811).

122011412421 is an equidigital number, since it uses as much as digits as its factorization.

122011412421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40670470810.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122011412421 its reverse (124214110221), we get a palindrome (246225522642).

The spelling of 122011412421 in words is "one hundred twenty-two billion, eleven million, four hundred twelve thousand, four hundred twenty-one".