100221011002111 has 4 divisors (see below), whose sum is σ = 101632574537424. Its totient is φ = 98809447466800.

The previous prime is 100221011002093. The next prime is 100221011002121. The reversal of 100221011002111 is 111200110122001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100221011002111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100221011002091 and 100221011002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221011002121) 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, 705781767550 + ... + 705781767691.

It is an arithmetic number, because the mean of its divisors is an integer number (25408143634356).

Almost surely, 2^{100221011002111} is an apocalyptic number.

100221011002111 is a deficient number, since it is larger than the sum of its proper divisors (1411563535313).

100221011002111 is an equidigital number, since it uses as much as digits as its factorization.

100221011002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411563535312.

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

Adding to 100221011002111 its reverse (111200110122001), we get a palindrome (211421121124112).

The spelling of 100221011002111 in words is "one hundred trillion, two hundred twenty-one billion, eleven million, two thousand, one hundred eleven".