212102122020201 has 96 divisors (see below), whose sum is σ = 375407580607488. Its totient is φ = 112639490611200.

The previous prime is 212102122020121. The next prime is 212102122020203. The reversal of 212102122020201 is 102020221201212.

It is a happy number.

212102122020201 is a `hidden beast` number, since 2 + 1 + 210 + 212 + 20 + 20 + 201 = 666.

It is not a de Polignac number, because 212102122020201 - 2¹⁸ = 212102121758057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212102122020203) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37719360 + ... + 42976206.

It is an arithmetic number, because the mean of its divisors is an integer number (3910495631328).

Almost surely, 2^{212102122020201} is an apocalyptic number.

212102122020201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212102122020201 is a deficient number, since it is larger than the sum of its proper divisors (163305458587287).

212102122020201 is a wasteful number, since it uses less digits than its factorization.

212102122020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257351 (or 5257348 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212102122020201 its reverse (102020221201212), we get a palindrome (314122343221413).

The spelling of 212102122020201 in words is "two hundred twelve trillion, one hundred two billion, one hundred twenty-two million, twenty thousand, two hundred one".