20937300210221 has 16 divisors (see below), whose sum is σ = 22493169907200. Its totient is φ = 19430128993968.

The previous prime is 20937300210209. The next prime is 20937300210263. The reversal of 20937300210221 is 12201200373902.

It is a cyclic number.

It is not a de Polignac number, because 20937300210221 - 2¹⁸ = 20937299948077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20937300210821) 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, 45714065 + ... + 46169798.

It is an arithmetic number, because the mean of its divisors is an integer number (1405823119200).

Almost surely, 2^{20937300210221} is an apocalyptic number.

It is an amenable number.

20937300210221 is a deficient number, since it is larger than the sum of its proper divisors (1555869696979).

20937300210221 is a wasteful number, since it uses less digits than its factorization.

20937300210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91884128.

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 20937300210221 in words is "twenty trillion, nine hundred thirty-seven billion, three hundred million, two hundred ten thousand, two hundred twenty-one".