221102101012 has 24 divisors (see below), whose sum is σ = 416862948096. Its totient is φ = 102005361888.

The previous prime is 221102101001. The next prime is 221102101037. The reversal of 221102101012 is 210101201122.

221102101012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221102101012² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 221102100983 and 221102101001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741568 + ... + 996055.

It is an arithmetic number, because the mean of its divisors is an integer number (17369289504).

Almost surely, 2^221102101012 is an apocalyptic number.

It is an amenable number.

221102101012 is a deficient number, since it is larger than the sum of its proper divisors (195760847084).

221102101012 is a wasteful number, since it uses less digits than its factorization.

221102101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740087 (or 1740085 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221102101012 its reverse (210101201122), we get a palindrome (431203302134).

The spelling of 221102101012 in words is "two hundred twenty-one billion, one hundred two million, one hundred one thousand, twelve".