10423421421220 has 24 divisors (see below), whose sum is σ = 21889434377664. Its totient is φ = 4169321065056.

The previous prime is 10423421421187. The next prime is 10423421421239. The reversal of 10423421421220 is 2212412432401.

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, 1142272 + ... + 4706551.

It is an arithmetic number, because the mean of its divisors is an integer number (912059765736).

Almost surely, 2^{10423421421220} is an apocalyptic number.

10423421421220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10423421421220 is an abundant number, since it is smaller than the sum of its proper divisors (11466012956444).

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

10423421421220 is a wasteful number, since it uses less digits than its factorization.

10423421421220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5937939 (or 5937937 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 10423421421220 its reverse (2212412432401), we get a palindrome (12635833853621).

The spelling of 10423421421220 in words is "ten trillion, four hundred twenty-three billion, four hundred twenty-one million, four hundred twenty-one thousand, two hundred twenty".