1002111022111 has 4 divisors (see below), whose sum is σ = 1061058729312. Its totient is φ = 943163314912.

The previous prime is 1002111022079. The next prime is 1002111022117. The reversal of 1002111022111 is 1112201112001.

It is a happy number.

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 1002111022111 - 2⁵ = 1002111022079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002111022091 and 1002111022100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002111022117) 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, 29473853575 + ... + 29473853608.

It is an arithmetic number, because the mean of its divisors is an integer number (265264682328).

Almost surely, 2^{1002111022111} is an apocalyptic number.

1002111022111 is a deficient number, since it is larger than the sum of its proper divisors (58947707201).

1002111022111 is an equidigital number, since it uses as much as digits as its factorization.

1002111022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58947707200.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1002111022111 its reverse (1112201112001), we get a palindrome (2114312134112).

The spelling of 1002111022111 in words is "one trillion, two billion, one hundred eleven million, twenty-two thousand, one hundred eleven".