212001121012211 has 4 divisors (see below), whose sum is σ = 212116905351024. Its totient is φ = 211885336673400.

The previous prime is 212001121012183. The next prime is 212001121012301. The reversal of 212001121012211 is 112210121100212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212001121012211 - 2⁶ = 212001121012147 is a prime.

It is a super-2 number, since 2×212001121012211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212001121012211.

It is not an unprimeable number, because it can be changed into a prime (212001121012711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57892166660 + ... + 57892170321.

It is an arithmetic number, because the mean of its divisors is an integer number (53029226337756).

Almost surely, 2^{212001121012211} is an apocalyptic number.

212001121012211 is a deficient number, since it is larger than the sum of its proper divisors (115784338813).

212001121012211 is a wasteful number, since it uses less digits than its factorization.

212001121012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115784338812.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212001121012211 its reverse (112210121100212), we get a palindrome (324211242112423).

The spelling of 212001121012211 in words is "two hundred twelve trillion, one billion, one hundred twenty-one million, twelve thousand, two hundred eleven".