20100111203210 has 32 divisors (see below), whose sum is σ = 36375047073792. Its totient is φ = 7996757720320.

The previous prime is 20100111203147. The next prime is 20100111203213. The reversal of 20100111203210 is 1230211100102.

It is not an unprimeable number, because it can be changed into a prime (20100111203213) 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, 12086639 + ... + 13648701.

It is an arithmetic number, because the mean of its divisors is an integer number (1136720221056).

Almost surely, 2^{20100111203210} is an apocalyptic number.

20100111203210 is a deficient number, since it is larger than the sum of its proper divisors (16274935870582).

20100111203210 is a wasteful number, since it uses less digits than its factorization.

20100111203210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568998.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20100111203210 its reverse (1230211100102), we get a palindrome (21330322303312).

The spelling of 20100111203210 in words is "twenty trillion, one hundred billion, one hundred eleven million, two hundred three thousand, two hundred ten".