20021513425101 has 16 divisors (see below), whose sum is σ = 31222633022400. Its totient is φ = 12645166373424.

The previous prime is 20021513425073. The next prime is 20021513425129. The reversal of 20021513425101 is 10152431512002.

It is a happy number.

20021513425101 is a `hidden beast` number, since 2 + 0 + 0 + 2 + 1 + 513 + 42 + 5 + 101 = 666.

It is an interprime number because it is at equal distance from previous prime (20021513425073) and next prime (20021513425129).

It is not a de Polignac number, because 20021513425101 - 2¹³ = 20021513416909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021513425141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19514145126 + ... + 19514146151.

It is an arithmetic number, because the mean of its divisors is an integer number (1951414563900).

Almost surely, 2^{20021513425101} is an apocalyptic number.

It is an amenable number.

20021513425101 is a deficient number, since it is larger than the sum of its proper divisors (11201119597299).

20021513425101 is a wasteful number, since it uses less digits than its factorization.

20021513425101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39028291305 (or 39028291299 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 20021513425101 its reverse (10152431512002), we get a palindrome (30173944937103).

The spelling of 20021513425101 in words is "twenty trillion, twenty-one billion, five hundred thirteen million, four hundred twenty-five thousand, one hundred one".