20010110112211 has 4 divisors (see below), whose sum is σ = 20010126760624. Its totient is φ = 20010093463800.

The previous prime is 20010110112203. The next prime is 20010110112259. The reversal of 20010110112211 is 11221101101002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20010110112211 - 2³ = 20010110112203 is a prime.

It is a super-2 number, since 2×20010110112211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010110112191 and 20010110112200.

It is not an unprimeable number, because it can be changed into a prime (20010110112281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6368100 + ... + 8976241.

It is an arithmetic number, because the mean of its divisors is an integer number (5002531690156).

Almost surely, 2^{20010110112211} is an apocalyptic number.

20010110112211 is a deficient number, since it is larger than the sum of its proper divisors (16648413).

20010110112211 is a wasteful number, since it uses less digits than its factorization.

20010110112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16648412.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20010110112211 its reverse (11221101101002), we get a palindrome (31231211213213).

The spelling of 20010110112211 in words is "twenty trillion, ten billion, one hundred ten million, one hundred twelve thousand, two hundred eleven".