212112201211012 has 6 divisors (see below), whose sum is σ = 371196352119278. Its totient is φ = 106056100605504.

The previous prime is 212112201210997. The next prime is 212112201211019. The reversal of 212112201211012 is 210112102211212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 200749679355456 + 11362521855556 = 14168616^2 + 3370834^2 .

It is not an unprimeable number, because it can be changed into a prime (212112201211019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26514025151373 + ... + 26514025151380.

Almost surely, 2^{212112201211012} is an apocalyptic number.

It is an amenable number.

212112201211012 is a deficient number, since it is larger than the sum of its proper divisors (159084150908266).

212112201211012 is a wasteful number, since it uses less digits than its factorization.

212112201211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53028050302757 (or 53028050302755 counting only the distinct ones).

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

Adding to 212112201211012 its reverse (210112102211212), we get a palindrome (422224303422224).

The spelling of 212112201211012 in words is "two hundred twelve trillion, one hundred twelve billion, two hundred one million, two hundred eleven thousand, twelve".