1112121120212 has 6 divisors (see below), whose sum is σ = 1946211960378. Its totient is φ = 556060560104.

The previous prime is 1112121120197. The next prime is 1112121120233. The reversal of 1112121120212 is 2120211212111.

It can be written as a sum of positive squares in only one way, i.e., 765110586436 + 347010533776 = 874706^2 + 589076^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139015140023 + ... + 139015140030.

It is an arithmetic number, because the mean of its divisors is an integer number (324368660063).

Almost surely, 2^{1112121120212} is an apocalyptic number.

It is an amenable number.

1112121120212 is a deficient number, since it is larger than the sum of its proper divisors (834090840166).

1112121120212 is a wasteful number, since it uses less digits than its factorization.

1112121120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278030280057 (or 278030280055 counting only the distinct ones).

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

Adding to 1112121120212 its reverse (2120211212111), we get a palindrome (3232332332323).

The spelling of 1112121120212 in words is "one trillion, one hundred twelve billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twelve".