1001210201111 has 8 divisors (see below), whose sum is σ = 1003259496960. Its totient is φ = 999161139672.

The previous prime is 1001210201023. The next prime is 1001210201143. The reversal of 1001210201111 is 1111020121001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001210201111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001210201092 and 1001210201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001210201011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10385750 + ... + 10481708.

It is an arithmetic number, because the mean of its divisors is an integer number (125407437120).

Almost surely, 2^{1001210201111} is an apocalyptic number.

1001210201111 is a deficient number, since it is larger than the sum of its proper divisors (2049295849).

1001210201111 is an equidigital number, since it uses as much as digits as its factorization.

1001210201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117205.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1001210201111 its reverse (1111020121001), we get a palindrome (2112230322112).

The spelling of 1001210201111 in words is "one trillion, one billion, two hundred ten million, two hundred one thousand, one hundred eleven".