20010111210201 has 16 divisors (see below), whose sum is σ = 31066911206784. Its totient is φ = 11218606823424.

The previous prime is 20010111210161. The next prime is 20010111210217. The reversal of 20010111210201 is 10201211101002.

It is not a de Polignac number, because 20010111210201 - 2²² = 20010107015897 is a prime.

It is a super-2 number, since 2×20010111210201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20010111210281) 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, 8989267176 + ... + 8989269401.

It is an arithmetic number, because the mean of its divisors is an integer number (1941681950424).

Almost surely, 2^{20010111210201} is an apocalyptic number.

20010111210201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20010111210201 is a deficient number, since it is larger than the sum of its proper divisors (11056799996583).

20010111210201 is a wasteful number, since it uses less digits than its factorization.

20010111210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17978536640.

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

Adding to 20010111210201 its reverse (10201211101002), we get a palindrome (30211322311203).

The spelling of 20010111210201 in words is "twenty trillion, ten billion, one hundred eleven million, two hundred ten thousand, two hundred one".