1011120202111 has 4 divisors (see below), whose sum is σ = 1011264634224. Its totient is φ = 1010975770000.

The previous prime is 1011120202109. The next prime is 1011120202121. The reversal of 1011120202111 is 1112020211101.

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 1011120202111 - 2¹ = 1011120202109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011120202091 and 1011120202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011120202121) 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, 72205555 + ... + 72219556.

It is an arithmetic number, because the mean of its divisors is an integer number (252816158556).

Almost surely, 2^{1011120202111} is an apocalyptic number.

1011120202111 is a deficient number, since it is larger than the sum of its proper divisors (144432113).

1011120202111 is an equidigital number, since it uses as much as digits as its factorization.

1011120202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144432112.

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

Adding to 1011120202111 its reverse (1112020211101), we get a palindrome (2123140413212).

The spelling of 1011120202111 in words is "one trillion, eleven billion, one hundred twenty million, two hundred two thousand, one hundred eleven".