100221210010111 has 4 divisors (see below), whose sum is σ = 100221230688552. Its totient is φ = 100221189331672.

The previous prime is 100221210010049. The next prime is 100221210010139. The reversal of 100221210010111 is 111010012122001.

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 100221210010111 - 2¹³ = 100221210001919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100221210010091 and 100221210010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221210010151) 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, 1293261 + ... + 14216713.

It is an arithmetic number, because the mean of its divisors is an integer number (25055307672138).

Almost surely, 2^{100221210010111} is an apocalyptic number.

100221210010111 is a deficient number, since it is larger than the sum of its proper divisors (20678441).

100221210010111 is an equidigital number, since it uses as much as digits as its factorization.

100221210010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20678440.

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

Adding to 100221210010111 its reverse (111010012122001), we get a palindrome (211231222132112).

The spelling of 100221210010111 in words is "one hundred trillion, two hundred twenty-one billion, two hundred ten million, ten thousand, one hundred eleven".