221102102001012 has 48 divisors (see below), whose sum is σ = 543764440880640. Its totient is φ = 69816668940928.

The previous prime is 221102102000977. The next prime is 221102102001019. The reversal of 221102102001012 is 210100201201122.

It is a super-2 number, since 2×221102102001012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221102102000982 and 221102102001000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221102102001019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5993857668 + ... + 5993894555.

It is an arithmetic number, because the mean of its divisors is an integer number (11328425851680).

Almost surely, 2^{221102102001012} is an apocalyptic number.

It is an amenable number.

221102102001012 is an abundant number, since it is smaller than the sum of its proper divisors (322662338879628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221102102001012 is a wasteful number, since it uses less digits than its factorization.

221102102001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11987752312 (or 11987752310 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221102102001012 its reverse (210100201201122), we get a palindrome (431202303202134).

The spelling of 221102102001012 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred two million, one thousand, twelve".