212201212121002 has 8 divisors (see below), whose sum is σ = 342786573426276. Its totient is φ = 97939020978912.

The previous prime is 212201212120967. The next prime is 212201212121033. The reversal of 212201212121002 is 200121212102212.

It can be written as a sum of positive squares in 2 ways, for example, as 204458855785921 + 7742356335081 = 14298911^2 + 2782509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×212201212121002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4080792540763 + ... + 4080792540814.

Almost surely, 2^{212201212121002} is an apocalyptic number.

212201212121002 is a deficient number, since it is larger than the sum of its proper divisors (130585361305274).

212201212121002 is a wasteful number, since it uses less digits than its factorization.

212201212121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8161585081592.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212201212121002 its reverse (200121212102212), we get a palindrome (412322424223214).

The spelling of 212201212121002 in words is "two hundred twelve trillion, two hundred one billion, two hundred twelve million, one hundred twenty-one thousand, two".