101220221102111 has 4 divisors (see below), whose sum is σ = 101312998574424. Its totient is φ = 101127443629800.

The previous prime is 101220221102089. The next prime is 101220221102153. The reversal of 101220221102111 is 111201122022101.

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 101220221102111 - 2⁶ = 101220221102047 is a prime.

It is a super-3 number, since 3×101220221102111³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101220221102111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220221102191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46388734520 + ... + 46388736701.

It is an arithmetic number, because the mean of its divisors is an integer number (25328249643606).

Almost surely, 2^{101220221102111} is an apocalyptic number.

101220221102111 is a deficient number, since it is larger than the sum of its proper divisors (92777472313).

101220221102111 is an equidigital number, since it uses as much as digits as its factorization.

101220221102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92777472312.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101220221102111 its reverse (111201122022101), we get a palindrome (212421343124212).

The spelling of 101220221102111 in words is "one hundred one trillion, two hundred twenty billion, two hundred twenty-one million, one hundred two thousand, one hundred eleven".