11121210120212 has 12 divisors (see below), whose sum is σ = 19463895311700. Its totient is φ = 5560097174016.

The previous prime is 11121210120203. The next prime is 11121210120221. The reversal of 11121210120212 is 21202101212111.

It is an interprime number because it is at equal distance from previous prime (11121210120203) and next prime (11121210120221).

It can be written as a sum of positive squares in 2 ways, for example, as 5412723228676 + 5708486891536 = 2326526^2 + 2389244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126922253 + ... + 127009844.

It is an arithmetic number, because the mean of its divisors is an integer number (1621991275975).

Almost surely, 2^{11121210120212} is an apocalyptic number.

It is an amenable number.

11121210120212 is a deficient number, since it is larger than the sum of its proper divisors (8342685191488).

11121210120212 is a wasteful number, since it uses less digits than its factorization.

11121210120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253943050 (or 253943048 counting only the distinct ones).

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

Adding to 11121210120212 its reverse (21202101212111), we get a palindrome (32323311332323).

The spelling of 11121210120212 in words is "eleven trillion, one hundred twenty-one billion, two hundred ten million, one hundred twenty thousand, two hundred twelve".