1001221022112 has 24 divisors (see below), whose sum is σ = 2628205183296. Its totient is φ = 333740340672.

The previous prime is 1001221022069. The next prime is 1001221022159. The reversal of 1001221022112 is 2112201221001.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 1001221022091 and 1001221022100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5214692728 + ... + 5214692919.

It is an arithmetic number, because the mean of its divisors is an integer number (109508549304).

Almost surely, 2^{1001221022112} is an apocalyptic number.

1001221022112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001221022112 is an abundant number, since it is smaller than the sum of its proper divisors (1626984161184).

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

1001221022112 is a wasteful number, since it uses less digits than its factorization.

1001221022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10429385660 (or 10429385652 counting only the distinct ones).

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

Adding to 1001221022112 its reverse (2112201221001), we get a palindrome (3113422243113).

The spelling of 1001221022112 in words is "one trillion, one billion, two hundred twenty-one million, twenty-two thousand, one hundred twelve".