1012122112211 has 4 divisors (see below), whose sum is σ = 1156710985392. Its totient is φ = 867533239032.

The previous prime is 1012122112159. The next prime is 1012122112247. The reversal of 1012122112211 is 1122112212101.

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 1012122112211 - 2⁶ = 1012122112147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012122112211.

It is not an unprimeable number, because it can be changed into a prime (1012152112211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72294436580 + ... + 72294436593.

It is an arithmetic number, because the mean of its divisors is an integer number (289177746348).

Almost surely, 2^{1012122112211} is an apocalyptic number.

1012122112211 is a deficient number, since it is larger than the sum of its proper divisors (144588873181).

1012122112211 is an equidigital number, since it uses as much as digits as its factorization.

1012122112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144588873180.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1012122112211 its reverse (1122112212101), we get a palindrome (2134234324312).

The spelling of 1012122112211 in words is "one trillion, twelve billion, one hundred twenty-two million, one hundred twelve thousand, two hundred eleven".