20350010160221 has 16 divisors (see below), whose sum is σ = 23394025290240. Its totient is φ = 17340270592560.

The previous prime is 20350010160199. The next prime is 20350010160241. The reversal of 20350010160221 is 12206101005302.

It is a cyclic number.

It is not a de Polignac number, because 20350010160221 - 2⁴² = 15951963649117 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 (20350010160241) 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, 1814930 + ... + 6632796.

It is an arithmetic number, because the mean of its divisors is an integer number (1462126580640).

Almost surely, 2^{20350010160221} is an apocalyptic number.

It is an amenable number.

20350010160221 is a deficient number, since it is larger than the sum of its proper divisors (3044015130019).

20350010160221 is a wasteful number, since it uses less digits than its factorization.

20350010160221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4821424.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 20350010160221 its reverse (12206101005302), we get a palindrome (32556111165523).

The spelling of 20350010160221 in words is "twenty trillion, three hundred fifty billion, ten million, one hundred sixty thousand, two hundred twenty-one".