212021101001212 has 6 divisors (see below), whose sum is σ = 371036926752128. Its totient is φ = 106010550500604.

The previous prime is 212021101001167. The next prime is 212021101001219. The reversal of 212021101001212 is 212100101120212.

It is a super-2 number, since 2×212021101001212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021101001219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26502637625148 + ... + 26502637625155.

Almost surely, 2^{212021101001212} is an apocalyptic number.

It is an amenable number.

212021101001212 is a deficient number, since it is larger than the sum of its proper divisors (159015825750916).

212021101001212 is a wasteful number, since it uses less digits than its factorization.

212021101001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53005275250307 (or 53005275250305 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212021101001212 its reverse (212100101120212), we get a palindrome (424121202121424).

The spelling of 212021101001212 in words is "two hundred twelve trillion, twenty-one billion, one hundred one million, one thousand, two hundred twelve".