1001002221112 has 32 divisors (see below), whose sum is σ = 1884147447600. Its totient is φ = 498563478784.

The previous prime is 1001002221091. The next prime is 1001002221127. The reversal of 1001002221112 is 2111222001001.

It is a junction number, because it is equal to n+sod(n) for n = 1001002221092 and 1001002221101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15447003 + ... + 15511669.

Almost surely, 2^{1001002221112} is an apocalyptic number.

It is an amenable number.

1001002221112 is a deficient number, since it is larger than the sum of its proper divisors (883145226488).

1001002221112 is a wasteful number, since it uses less digits than its factorization.

1001002221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72135 (or 72131 counting only the distinct ones).

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

Adding to 1001002221112 its reverse (2111222001001), we get a palindrome (3112224222113).

The spelling of 1001002221112 in words is "one trillion, one billion, two million, two hundred twenty-one thousand, one hundred twelve".