100221101020111 has 4 divisors (see below), whose sum is σ = 100224636309000. Its totient is φ = 100217565731224.

The previous prime is 100221101020081. The next prime is 100221101020207. The reversal of 100221101020111 is 111020101122001.

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 100221101020111 - 2¹¹ = 100221101018063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100221101020091 and 100221101020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221101020211) 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, 1767601921 + ... + 1767658618.

It is an arithmetic number, because the mean of its divisors is an integer number (25056159077250).

Almost surely, 2^{100221101020111} is an apocalyptic number.

100221101020111 is a deficient number, since it is larger than the sum of its proper divisors (3535288889).

100221101020111 is an equidigital number, since it uses as much as digits as its factorization.

100221101020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535288888.

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

Adding to 100221101020111 its reverse (111020101122001), we get a palindrome (211241202142112).

The spelling of 100221101020111 in words is "one hundred trillion, two hundred twenty-one billion, one hundred one million, twenty thousand, one hundred eleven".