1000120202111 has 4 divisors (see below), whose sum is σ = 1000791876000. Its totient is φ = 999448528224.

The previous prime is 1000120202099. The next prime is 1000120202117. The reversal of 1000120202111 is 1112020210001.

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 1000120202111 - 2¹⁸ = 1000119939967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000120202092 and 1000120202101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000120202117) 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, 335834711 + ... + 335837688.

It is an arithmetic number, because the mean of its divisors is an integer number (250197969000).

Almost surely, 2^{1000120202111} is an apocalyptic number.

1000120202111 is a deficient number, since it is larger than the sum of its proper divisors (671673889).

1000120202111 is an equidigital number, since it uses as much as digits as its factorization.

1000120202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671673888.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1000120202111 its reverse (1112020210001), we get a palindrome (2112140412112).

The spelling of 1000120202111 in words is "one trillion, one hundred twenty million, two hundred two thousand, one hundred eleven".