10420219821920 has 24 divisors (see below), whose sum is σ = 24617769329664. Its totient is φ = 4168087928704.

The previous prime is 10420219821881. The next prime is 10420219821983. The reversal of 10420219821920 is 2912891202401.

It is a super-2 number, since 2×10420219821920² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32563186784 + ... + 32563187103.

It is an arithmetic number, because the mean of its divisors is an integer number (1025740388736).

Almost surely, 2^{10420219821920} is an apocalyptic number.

10420219821920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10420219821920 is an abundant number, since it is smaller than the sum of its proper divisors (14197549507744).

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

10420219821920 is an equidigital number, since it uses as much as digits as its factorization.

10420219821920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65126373902 (or 65126373894 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 10420219821920 in words is "ten trillion, four hundred twenty billion, two hundred nineteen million, eight hundred twenty-one thousand, nine hundred twenty".