122204031440 has 20 divisors (see below), whose sum is σ = 284124373284. Its totient is φ = 48881612544.

The previous prime is 122204031419. The next prime is 122204031529. The reversal of 122204031440 is 44130402221.

It can be written as a sum of positive squares in 2 ways, for example, as 92284718656 + 29919312784 = 303784^2 + 172972^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763775117 + ... + 763775276.

Almost surely, 2^122204031440 is an apocalyptic number.

122204031440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122204031440 is an abundant number, since it is smaller than the sum of its proper divisors (161920341844).

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

122204031440 is a wasteful number, since it uses less digits than its factorization.

122204031440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527550406 (or 1527550400 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 122204031440 its reverse (44130402221), we get a palindrome (166334433661).

The spelling of 122204031440 in words is "one hundred twenty-two billion, two hundred four million, thirty-one thousand, four hundred forty".