20212365571420 has 48 divisors (see below), whose sum is σ = 47178365498208. Its totient is φ = 7211272789760.

The previous prime is 20212365571399. The next prime is 20212365571421. The reversal of 20212365571420 is 2417556321202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212365571421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 866727859 + ... + 866751178.

It is an arithmetic number, because the mean of its divisors is an integer number (982882614546).

Almost surely, 2^{20212365571420} is an apocalyptic number.

20212365571420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212365571420 is an abundant number, since it is smaller than the sum of its proper divisors (26965999926788).

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

20212365571420 is a wasteful number, since it uses less digits than its factorization.

20212365571420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733479110 (or 1733479108 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 20212365571420 in words is "twenty trillion, two hundred twelve billion, three hundred sixty-five million, five hundred seventy-one thousand, four hundred twenty".