122042415440 has 40 divisors (see below), whose sum is σ = 309543946848. Its totient is φ = 44379059840.

The previous prime is 122042415433. The next prime is 122042415493. The reversal of 122042415440 is 44514240221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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, 69341402 + ... + 69343161.

Almost surely, 2^122042415440 is an apocalyptic number.

122042415440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122042415440 is an abundant number, since it is smaller than the sum of its proper divisors (187501531408).

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

122042415440 is a wasteful number, since it uses less digits than its factorization.

122042415440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138684587 (or 138684581 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 122042415440 its reverse (44514240221), we get a palindrome (166556655661).

The spelling of 122042415440 in words is "one hundred twenty-two billion, forty-two million, four hundred fifteen thousand, four hundred forty".