20010111212110 has 8 divisors (see below), whose sum is σ = 36018200181816. Its totient is φ = 8004044484840.

The previous prime is 20010111212083. The next prime is 20010111212159. The reversal of 20010111212110 is 1121211101002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000505560596 + ... + 1000505560615.

It is an arithmetic number, because the mean of its divisors is an integer number (4502275022727).

Almost surely, 2^{20010111212110} is an apocalyptic number.

20010111212110 is a deficient number, since it is larger than the sum of its proper divisors (16008088969706).

20010111212110 is a wasteful number, since it uses less digits than its factorization.

20010111212110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001011121218.

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

Adding to 20010111212110 its reverse (1121211101002), we get a palindrome (21131322313112).

The spelling of 20010111212110 in words is "twenty trillion, ten billion, one hundred eleven million, two hundred twelve thousand, one hundred ten".