1202011112111 has 4 divisors (see below), whose sum is σ = 1227585816672. Its totient is φ = 1176436407552.

The previous prime is 1202011112101. The next prime is 1202011112171. The reversal of 1202011112111 is 1112111102021.

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-1202011112111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202011112101) 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, 12787352210 + ... + 12787352303.

It is an arithmetic number, because the mean of its divisors is an integer number (306896454168).

Almost surely, 2^{1202011112111} is an apocalyptic number.

1202011112111 is a deficient number, since it is larger than the sum of its proper divisors (25574704561).

1202011112111 is an equidigital number, since it uses as much as digits as its factorization.

1202011112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25574704560.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1202011112111 its reverse (1112111102021), we get a palindrome (2314122214132).

The spelling of 1202011112111 in words is "one trillion, two hundred two billion, eleven million, one hundred twelve thousand, one hundred eleven".