20010111100210 has 144 divisors (see below), whose sum is σ = 46741349555712. Its totient is φ = 6143828201280.

The previous prime is 20010111100169. The next prime is 20010111100313. The reversal of 20010111100210 is 1200111101002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1453807 + ... + 6491053.

It is an arithmetic number, because the mean of its divisors is an integer number (324592705248).

Almost surely, 2^{20010111100210} is an apocalyptic number.

20010111100210 is an abundant number, since it is smaller than the sum of its proper divisors (26731238455502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20010111100210 is a wasteful number, since it uses less digits than its factorization.

20010111100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5037357 (or 5037339 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20010111100210 its reverse (1200111101002), we get a palindrome (21210222201212).

It can be divided in two parts, 200101 and 11100210, that added together give a palindrome (11300311).

The spelling of 20010111100210 in words is "twenty trillion, ten billion, one hundred eleven million, one hundred thousand, two hundred ten".