1002201221111 has 4 divisors (see below), whose sum is σ = 1002214257000. Its totient is φ = 1002188185224.

The previous prime is 1002201221039. The next prime is 1002201221141. The reversal of 1002201221111 is 1111221022001.

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 1002201221111 - 2²⁶ = 1002134112247 is a prime.

It is a super-3 number, since 3×1002201221111³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002201221141) 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, 6401936 + ... + 6556613.

It is an arithmetic number, because the mean of its divisors is an integer number (250553564250).

Almost surely, 2^{1002201221111} is an apocalyptic number.

1002201221111 is a deficient number, since it is larger than the sum of its proper divisors (13035889).

1002201221111 is an equidigital number, since it uses as much as digits as its factorization.

1002201221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13035888.

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

Adding to 1002201221111 its reverse (1111221022001), we get a palindrome (2113422243112).

The spelling of 1002201221111 in words is "one trillion, two billion, two hundred one million, two hundred twenty-one thousand, one hundred eleven".