1021011443201 has 8 divisors (see below), whose sum is σ = 1074816643680. Its totient is φ = 967213018368.

The previous prime is 1021011443191. The next prime is 1021011443219. The reversal of 1021011443201 is 1023441101201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021011443201 - 2²² = 1021007248897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021011443701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1383131 + ... + 1988736.

It is an arithmetic number, because the mean of its divisors is an integer number (134352080460).

Almost surely, 2^{1021011443201} is an apocalyptic number.

It is an amenable number.

1021011443201 is a deficient number, since it is larger than the sum of its proper divisors (53805200479).

1021011443201 is a wasteful number, since it uses less digits than its factorization.

1021011443201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387823.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1021011443201 its reverse (1023441101201), we get a palindrome (2044452544402).

The spelling of 1021011443201 in words is "one trillion, twenty-one billion, eleven million, four hundred forty-three thousand, two hundred one".