122005103240 has 32 divisors (see below), whose sum is σ = 279690949080. Its totient is φ = 47881247232.

The previous prime is 122005103239. The next prime is 122005103257. The reversal of 122005103240 is 42301500221.

It can be written as a sum of positive squares in 4 ways, for example, as 68276644804 + 53728458436 = 261298^2 + 231794^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 28772669 + ... + 28776908.

Almost surely, 2^122005103240 is an apocalyptic number.

122005103240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122005103240 is an abundant number, since it is smaller than the sum of its proper divisors (157685845840).

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

122005103240 is a wasteful number, since it uses less digits than its factorization.

122005103240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57549641 (or 57549637 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 122005103240 its reverse (42301500221), we get a palindrome (164306603461).

The spelling of 122005103240 in words is "one hundred twenty-two billion, five million, one hundred three thousand, two hundred forty".