1002000221201 has 4 divisors (see below), whose sum is σ = 1145143109952. Its totient is φ = 858857332452.

The previous prime is 1002000221107. The next prime is 1002000221237. The reversal of 1002000221201 is 1021220002001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1002000221201 - 2¹⁴ = 1002000204817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002000221291) 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, 71571444365 + ... + 71571444378.

It is an arithmetic number, because the mean of its divisors is an integer number (286285777488).

Almost surely, 2^{1002000221201} is an apocalyptic number.

It is an amenable number.

1002000221201 is a deficient number, since it is larger than the sum of its proper divisors (143142888751).

1002000221201 is an equidigital number, since it uses as much as digits as its factorization.

1002000221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143142888750.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1002000221201 its reverse (1021220002001), we get a palindrome (2023220223202).

The spelling of 1002000221201 in words is "one trillion, two billion, two hundred twenty-one thousand, two hundred one".