212122112101202 has 8 divisors (see below), whose sum is σ = 320998948401276. Its totient is φ = 105122462634112.

The previous prime is 212122112101201. The next prime is 212122112101231. The reversal of 212122112101202 is 202101211221212.

It can be written as a sum of positive squares in 2 ways, for example, as 187609206096601 + 24512906004601 = 13697051^2 + 4951051^2 .

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

It is not an unprimeable number, because it can be changed into a prime (212122112101201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469296707963 + ... + 469296708414.

Almost surely, 2^{212122112101202} is an apocalyptic number.

212122112101202 is a deficient number, since it is larger than the sum of its proper divisors (108876836300074).

212122112101202 is a wasteful number, since it uses less digits than its factorization.

212122112101202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938593416492.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212122112101202 its reverse (202101211221212), we get a palindrome (414223323322414).

The spelling of 212122112101202 in words is "two hundred twelve trillion, one hundred twenty-two billion, one hundred twelve million, one hundred one thousand, two hundred two".