211202213010121 has 4 divisors (see below), whose sum is σ = 211231947244032. Its totient is φ = 211172478776212.

The previous prime is 211202213010077. The next prime is 211202213010149. The reversal of 211202213010121 is 121010312202112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211202213010121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211202213010181) 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, 14867106301 + ... + 14867120506.

It is an arithmetic number, because the mean of its divisors is an integer number (52807986811008).

Almost surely, 2^{211202213010121} is an apocalyptic number.

It is an amenable number.

211202213010121 is a deficient number, since it is larger than the sum of its proper divisors (29734233911).

211202213010121 is an equidigital number, since it uses as much as digits as its factorization.

211202213010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29734233910.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 211202213010121 its reverse (121010312202112), we get a palindrome (332212525212233).

The spelling of 211202213010121 in words is "two hundred eleven trillion, two hundred two billion, two hundred thirteen million, ten thousand, one hundred twenty-one".