20000211120021 has 32 divisors (see below), whose sum is σ = 29424625238016. Its totient is φ = 11983098960000.

The previous prime is 20000211119971. The next prime is 20000211120041. The reversal of 20000211120021 is 12002111200002.

It is not a de Polignac number, because 20000211120021 - 2¹⁰ = 20000211118997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20000211119979 and 20000211120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000211120041) 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 31 ways as a sum of consecutive naturals, for example, 7313755 + ... + 9669096.

It is an arithmetic number, because the mean of its divisors is an integer number (919519538688).

Almost surely, 2^{20000211120021} is an apocalyptic number.

It is an amenable number.

20000211120021 is a deficient number, since it is larger than the sum of its proper divisors (9424414117995).

20000211120021 is a wasteful number, since it uses less digits than its factorization.

20000211120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16983273.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20000211120021 its reverse (12002111200002), we get a palindrome (32002322320023).

The spelling of 20000211120021 in words is "twenty trillion, two hundred eleven million, one hundred twenty thousand, twenty-one".