211121201000201 has 4 divisors (see below), whose sum is σ = 211122287337492. Its totient is φ = 211120114662912.

The previous prime is 211121201000191. The next prime is 211121201000231. The reversal of 211121201000201 is 102000102121112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 747178716025 + 210374022284176 = 864395^2 + 14504276^2 .

It is a cyclic number.

It is not a de Polignac number, because 211121201000201 - 2⁶ = 211121201000137 is a prime.

It is a super-3 number, since 3×211121201000201³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121201000231) 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, 542877080 + ... + 543265833.

It is an arithmetic number, because the mean of its divisors is an integer number (52780571834373).

Almost surely, 2^{211121201000201} is an apocalyptic number.

It is an amenable number.

211121201000201 is a deficient number, since it is larger than the sum of its proper divisors (1086337291).

211121201000201 is a wasteful number, since it uses less digits than its factorization.

211121201000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086337290.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211121201000201 its reverse (102000102121112), we get a palindrome (313121303121313).

The spelling of 211121201000201 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred one million, two hundred one", and thus it is an aban number.