1001121220002 has 8 divisors (see below), whose sum is σ = 2002242440016. Its totient is φ = 333707073332.

The previous prime is 1001121219961. The next prime is 1001121220003. The reversal of 1001121220002 is 2000221211001.

1001121220002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

1001121220002 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001121220002.

It is not an unprimeable number, because it can be changed into a prime (1001121220003) 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, 83426768328 + ... + 83426768339.

It is an arithmetic number, because the mean of its divisors is an integer number (250280305002).

Almost surely, 2^{1001121220002} is an apocalyptic number.

1001121220002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1001121220002 is a wasteful number, since it uses less digits than its factorization.

1001121220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166853536672.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1001121220002 its reverse (2000221211001), we get a palindrome (3001342431003).

Subtracting 1001121220002 from its reverse (2000221211001), we obtain a palindrome (999099990999).

The spelling of 1001121220002 in words is "one trillion, one billion, one hundred twenty-one million, two hundred twenty thousand, two".