100221020122111 has 4 divisors (see below), whose sum is σ = 114538308710992. Its totient is φ = 85903731533232.

The previous prime is 100221020122103. The next prime is 100221020122141. The reversal of 100221020122111 is 111221020122001.

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 100221020122111 - 2³ = 100221020122103 is a prime.

It is a super-2 number, since 2×100221020122111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221020122141) 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, 7158644294430 + ... + 7158644294443.

It is an arithmetic number, because the mean of its divisors is an integer number (28634577177748).

Almost surely, 2^{100221020122111} is an apocalyptic number.

100221020122111 is a deficient number, since it is larger than the sum of its proper divisors (14317288588881).

100221020122111 is an equidigital number, since it uses as much as digits as its factorization.

100221020122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14317288588880.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100221020122111 its reverse (111221020122001), we get a palindrome (211442040244112).

The spelling of 100221020122111 in words is "one hundred trillion, two hundred twenty-one billion, twenty million, one hundred twenty-two thousand, one hundred eleven".