212120022101012 has 96 divisors (see below), whose sum is σ = 386157849982464. Its totient is φ = 101880691660800.

The previous prime is 212120022100963. The next prime is 212120022101017. The reversal of 212120022101012 is 210101220021212.

It is a super-2 number, since 2×212120022101012² (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 (212120022101017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15191572343 + ... + 15191586305.

It is an arithmetic number, because the mean of its divisors is an integer number (4022477603984).

Almost surely, 2^{212120022101012} is an apocalyptic number.

It is an amenable number.

212120022101012 is a deficient number, since it is larger than the sum of its proper divisors (174037827881452).

212120022101012 is a wasteful number, since it uses less digits than its factorization.

212120022101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16849 (or 16847 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212120022101012 its reverse (210101220021212), we get a palindrome (422221242122224).

The spelling of 212120022101012 in words is "two hundred twelve trillion, one hundred twenty billion, twenty-two million, one hundred one thousand, twelve".