1122112212011 has 4 divisors (see below), whose sum is σ = 1282413956592. Its totient is φ = 961810467432.

The previous prime is 1122112211981. The next prime is 1122112212043. The reversal of 1122112212011 is 1102122112211.

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 1122112212011 - 2⁶ = 1122112211947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122112202011) 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, 80150872280 + ... + 80150872293.

It is an arithmetic number, because the mean of its divisors is an integer number (320603489148).

Almost surely, 2^{1122112212011} is an apocalyptic number.

1122112212011 is a deficient number, since it is larger than the sum of its proper divisors (160301744581).

1122112212011 is an equidigital number, since it uses as much as digits as its factorization.

1122112212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160301744580.

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

Adding to 1122112212011 its reverse (1102122112211), we get a palindrome (2224234324222).

The spelling of 1122112212011 in words is "one trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twelve thousand, eleven".