212011121220112 has 10 divisors (see below), whose sum is σ = 410771547363998. Its totient is φ = 106005560610048.

The previous prime is 212011121220109. The next prime is 212011121220163. The reversal of 212011121220112 is 211022121110212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 125332861286656 + 86678259933456 = 11195216^2 + 9310116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212011121220112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6625347538113 + ... + 6625347538144.

Almost surely, 2^{212011121220112} is an apocalyptic number.

It is an amenable number.

212011121220112 is a deficient number, since it is larger than the sum of its proper divisors (198760426143886).

212011121220112 is a wasteful number, since it uses less digits than its factorization.

212011121220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13250695076265 (or 13250695076259 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212011121220112 its reverse (211022121110212), we get a palindrome (423033242330324).

The spelling of 212011121220112 in words is "two hundred twelve trillion, eleven billion, one hundred twenty-one million, two hundred twenty thousand, one hundred twelve".