122498253440 has 32 divisors (see below), whose sum is σ = 292847388660. Its totient is φ = 48999301120.

The previous prime is 122498253433. The next prime is 122498253457. The reversal of 122498253440 is 44352894221.

It can be written as a sum of positive squares in 2 ways, for example, as 122438407744 + 59845696 = 349912^2 + 7736^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 122498253391 and 122498253400.

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, 95701121 + ... + 95702400.

Almost surely, 2^122498253440 is an apocalyptic number.

122498253440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122498253440 is an abundant number, since it is smaller than the sum of its proper divisors (170349135220).

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

122498253440 is an equidigital number, since it uses as much as digits as its factorization.

122498253440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191403540 (or 191403528 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 122498253440 in words is "one hundred twenty-two billion, four hundred ninety-eight million, two hundred fifty-three thousand, four hundred forty".