1002201121211 has 4 divisors (see below), whose sum is σ = 1002409874424. Its totient is φ = 1001992368000.

The previous prime is 1002201121127. The next prime is 1002201121291. The reversal of 1002201121211 is 1121211022001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002201121211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002201121291) 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, 104369405 + ... + 104379006.

It is an arithmetic number, because the mean of its divisors is an integer number (250602468606).

Almost surely, 2^{1002201121211} is an apocalyptic number.

1002201121211 is a deficient number, since it is larger than the sum of its proper divisors (208753213).

1002201121211 is an equidigital number, since it uses as much as digits as its factorization.

1002201121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208753212.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1002201121211 its reverse (1121211022001), we get a palindrome (2123412143212).

The spelling of 1002201121211 in words is "one trillion, two billion, two hundred one million, one hundred twenty-one thousand, two hundred eleven".