103221421420 has 24 divisors (see below), whose sum is σ = 233439215184. Its totient is φ = 38112524736.

The previous prime is 103221421399. The next prime is 103221421441. The reversal of 103221421420 is 24124122301.

It is an interprime number because it is at equal distance from previous prime (103221421399) and next prime (103221421441).

It is a junction number, because it is equal to n+sod(n) for n = 103221421391 and 103221421400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198502474 + ... + 198502993.

It is an arithmetic number, because the mean of its divisors is an integer number (9726633966).

Almost surely, 2^103221421420 is an apocalyptic number.

103221421420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103221421420 is an abundant number, since it is smaller than the sum of its proper divisors (130217793764).

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

103221421420 is a wasteful number, since it uses less digits than its factorization.

103221421420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397005489 (or 397005487 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 103221421420 its reverse (24124122301), we get a palindrome (127345543721).

The spelling of 103221421420 in words is "one hundred three billion, two hundred twenty-one million, four hundred twenty-one thousand, four hundred twenty".