1001102221012 has 12 divisors (see below), whose sum is σ = 1752137781940. Its totient is φ = 500491426176.

The previous prime is 1001102220967. The next prime is 1001102221013. The reversal of 1001102221012 is 2101222011001.

It can be written as a sum of positive squares in 2 ways, for example, as 860564207556 + 140538013456 = 927666^2 + 374884^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1001102220983 and 1001102221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001102221013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14883333 + ... + 14950444.

Almost surely, 2^{1001102221012} is an apocalyptic number.

It is an amenable number.

1001102221012 is a deficient number, since it is larger than the sum of its proper divisors (751035560928).

1001102221012 is a wasteful number, since it uses less digits than its factorization.

1001102221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29842170 (or 29842168 counting only the distinct ones).

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

Adding to 1001102221012 its reverse (2101222011001), we get a palindrome (3102324232013).

The spelling of 1001102221012 in words is "one trillion, one billion, one hundred two million, two hundred twenty-one thousand, twelve".