103512222420 has 144 divisors (see below), whose sum is σ = 318504493440. Its totient is φ = 25083570176.

The previous prime is 103512222409. The next prime is 103512222439. The reversal of 103512222420 is 24222215301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 399937 + ... + 605783.

It is an arithmetic number, because the mean of its divisors is an integer number (2211836760).

Almost surely, 2^103512222420 is an apocalyptic number.

103512222420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103512222420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159252246720).

103512222420 is an abundant number, since it is smaller than the sum of its proper divisors (214992271020).

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

103512222420 is a wasteful number, since it uses less digits than its factorization.

103512222420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205922 (or 205903 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 103512222420 its reverse (24222215301), we get a palindrome (127734437721).

The spelling of 103512222420 in words is "one hundred three billion, five hundred twelve million, two hundred twenty-two thousand, four hundred twenty".