122011423420 has 24 divisors (see below), whose sum is σ = 257795922384. Its totient is φ = 48505153536.

The previous prime is 122011423411. The next prime is 122011423433. The reversal of 122011423420 is 24324110221.

It is a junction number, because it is equal to n+sod(n) for n = 122011423391 and 122011423400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18710149 + ... + 18716668.

It is an arithmetic number, because the mean of its divisors is an integer number (10741496766).

Almost surely, 2^122011423420 is an apocalyptic number.

122011423420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122011423420 is an abundant number, since it is smaller than the sum of its proper divisors (135784498964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122011423420 is a wasteful number, since it uses less digits than its factorization.

122011423420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37426989 (or 37426987 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 122011423420 its reverse (24324110221), we get a palindrome (146335533641).

The spelling of 122011423420 in words is "one hundred twenty-two billion, eleven million, four hundred twenty-three thousand, four hundred twenty".