1001002203211 has 4 divisors (see below), whose sum is σ = 1002394418400. Its totient is φ = 999609988024.

The previous prime is 1001002203169. The next prime is 1001002203221. The reversal of 1001002203211 is 1123022001001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1001002203211 - 2⁷ = 1001002203083 is a prime.

It is a super-2 number, since 2×1001002203211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001002203191 and 1001002203200.

It is not an unprimeable number, because it can be changed into a prime (1001002203221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696106516 + ... + 696107953.

It is an arithmetic number, because the mean of its divisors is an integer number (250598604600).

Almost surely, 2^{1001002203211} is an apocalyptic number.

1001002203211 is a deficient number, since it is larger than the sum of its proper divisors (1392215189).

1001002203211 is an equidigital number, since it uses as much as digits as its factorization.

1001002203211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392215188.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1001002203211 its reverse (1123022001001), we get a palindrome (2124024204212).

The spelling of 1001002203211 in words is "one trillion, one billion, two million, two hundred three thousand, two hundred eleven".