122017711420 has 24 divisors (see below), whose sum is σ = 279531484848. Its totient is φ = 44370076800.

The previous prime is 122017711399. The next prime is 122017711421. The reversal of 122017711420 is 24117710221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122017711421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277312761 + ... + 277313200.

It is an arithmetic number, because the mean of its divisors is an integer number (11647145202).

Almost surely, 2^122017711420 is an apocalyptic number.

122017711420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122017711420 is an abundant number, since it is smaller than the sum of its proper divisors (157513773428).

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

122017711420 is a wasteful number, since it uses less digits than its factorization.

122017711420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554625981 (or 554625979 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 28.

The spelling of 122017711420 in words is "one hundred twenty-two billion, seventeen million, seven hundred eleven thousand, four hundred twenty".