100021210211111 has 32 divisors (see below), whose sum is σ = 118588505379840. Its totient is φ = 82540702573056.

The previous prime is 100021210211071. The next prime is 100021210211177. The reversal of 100021210211111 is 111112012120001.

It is not a de Polignac number, because 100021210211111 - 2⁶ = 100021210211047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021210217111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108695135 + ... + 109611471.

It is an arithmetic number, because the mean of its divisors is an integer number (3705890793120).

Almost surely, 2^{100021210211111} is an apocalyptic number.

100021210211111 is a deficient number, since it is larger than the sum of its proper divisors (18567295168729).

100021210211111 is an equidigital number, since it uses as much as digits as its factorization.

100021210211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917903.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 100021210211111 its reverse (111112012120001), we get a palindrome (211133222331112).

The spelling of 100021210211111 in words is "one hundred trillion, twenty-one billion, two hundred ten million, two hundred eleven thousand, one hundred eleven".