221102101021112 has 8 divisors (see below), whose sum is σ = 414566439414600. Its totient is φ = 110551050510552.

The previous prime is 221102101021097. The next prime is 221102101021141. The reversal of 221102101021112 is 211120101201122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×221102101021112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13818881313812 + ... + 13818881313827.

It is an arithmetic number, because the mean of its divisors is an integer number (51820804926825).

Almost surely, 2^{221102101021112} is an apocalyptic number.

It is an amenable number.

221102101021112 is a deficient number, since it is larger than the sum of its proper divisors (193464338393488).

221102101021112 is a wasteful number, since it uses less digits than its factorization.

221102101021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27637762627645 (or 27637762627641 counting only the distinct ones).

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

Adding to 221102101021112 its reverse (211120101201122), we get a palindrome (432222202222234).

The spelling of 221102101021112 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred one million, twenty-one thousand, one hundred twelve".