20211021002012 has 12 divisors (see below), whose sum is σ = 35381223759336. Its totient is φ = 10102099927920.

The previous prime is 20211021001973. The next prime is 20211021002021. The reversal of 20211021002012 is 21020012011202.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 852629939 + ... + 852653642.

It is an arithmetic number, because the mean of its divisors is an integer number (2948435313278).

Almost surely, 2^{20211021002012} is an apocalyptic number.

It is an amenable number.

20211021002012 is a deficient number, since it is larger than the sum of its proper divisors (15170202757324).

20211021002012 is a wasteful number, since it uses less digits than its factorization.

20211021002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705286548 (or 1705286546 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20211021002012 its reverse (21020012011202), we get a palindrome (41231033013214).

The spelling of 20211021002012 in words is "twenty trillion, two hundred eleven billion, twenty-one million, two thousand, twelve".