1002111223111 has 2 divisors, whose sum is σ = 1002111223112. Its totient is φ = 1002111223110.

The previous prime is 1002111223103. The next prime is 1002111223129. The reversal of 1002111223111 is 1113221112001.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1113221112001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002111223111 - 2³ = 1002111223103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002111223811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501055611555 + 501055611556.

It is an arithmetic number, because the mean of its divisors is an integer number (501055611556).

Almost surely, 2^{1002111223111} is an apocalyptic number.

1002111223111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002111223111 is an equidigital number, since it uses as much as digits as its factorization.

1002111223111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1002111223111 its reverse (1113221112001), we get a palindrome (2115332335112).

The spelling of 1002111223111 in words is "one trillion, two billion, one hundred eleven million, two hundred twenty-three thousand, one hundred eleven".