201210121211 has 8 divisors (see below), whose sum is σ = 232413830064. Its totient is φ = 172158392320.

The previous prime is 201210121169. The next prime is 201210121213. The reversal of 201210121211 is 112121012102.

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

It is a cyclic number.

It is not a de Polignac number, because 201210121211 - 2¹⁴ = 201210104827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201210121213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537994790 + ... + 537995163.

It is an arithmetic number, because the mean of its divisors is an integer number (29051728758).

Almost surely, 2^201210121211 is an apocalyptic number.

201210121211 is a deficient number, since it is larger than the sum of its proper divisors (31203708853).

201210121211 is a wasteful number, since it uses less digits than its factorization.

201210121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075989981.

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

Adding to 201210121211 its reverse (112121012102), we get a palindrome (313331133313).

The spelling of 201210121211 in words is "two hundred one billion, two hundred ten million, one hundred twenty-one thousand, two hundred eleven".