221102110020111 has 8 divisors (see below), whose sum is σ = 304312581533184. Its totient is φ = 142646522593560.

The previous prime is 221102110020059. The next prime is 221102110020119. The reversal of 221102110020111 is 111020011201122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221102110020111 - 2¹⁹ = 221102109495823 is a prime.

It is a super-2 number, since 2×221102110020111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221102110020119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188721021521 + ... + 1188721021706.

It is an arithmetic number, because the mean of its divisors is an integer number (38039072691648).

Almost surely, 2^{221102110020111} is an apocalyptic number.

221102110020111 is a deficient number, since it is larger than the sum of its proper divisors (83210471513073).

221102110020111 is a wasteful number, since it uses less digits than its factorization.

221102110020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377442043261.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221102110020111 its reverse (111020011201122), we get a palindrome (332122121221233).

The spelling of 221102110020111 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred ten million, twenty thousand, one hundred eleven".