20010021110211 has 48 divisors (see below), whose sum is σ = 30042920587680. Its totient is φ = 11830839820800.

The previous prime is 20010021110197. The next prime is 20010021110221. The reversal of 20010021110211 is 11201112001002.

It is not a de Polignac number, because 20010021110211 - 2¹⁷ = 20010020979139 is a prime.

It is a super-2 number, since 2×20010021110211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20010021110221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 446899221 + ... + 446943993.

It is an arithmetic number, because the mean of its divisors is an integer number (625894178910).

Almost surely, 2^{20010021110211} is an apocalyptic number.

20010021110211 is a deficient number, since it is larger than the sum of its proper divisors (10032899477469).

20010021110211 is a wasteful number, since it uses less digits than its factorization.

20010021110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74868 (or 74857 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20010021110211 its reverse (11201112001002), we get a palindrome (31211133111213).

The spelling of 20010021110211 in words is "twenty trillion, ten billion, twenty-one million, one hundred ten thousand, two hundred eleven".