201331232121211 has 16 divisors (see below), whose sum is σ = 212173758480384. Its totient is φ = 190669016016864.

The previous prime is 201331232121199. The next prime is 201331232121223. The reversal of 201331232121211 is 112121232133102.

It is an interprime number because it is at equal distance from previous prime (201331232121199) and next prime (201331232121223).

It is a cyclic number.

It is not a de Polignac number, because 201331232121211 - 2⁷ = 201331232121083 is a prime.

It is a super-2 number, since 2×201331232121211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201331232121011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69342820 + ... + 72187873.

It is an arithmetic number, because the mean of its divisors is an integer number (13260859905024).

Almost surely, 2^{201331232121211} is an apocalyptic number.

201331232121211 is a deficient number, since it is larger than the sum of its proper divisors (10842526359173).

201331232121211 is a wasteful number, since it uses less digits than its factorization.

201331232121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141531330.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 201331232121211 its reverse (112121232133102), we get a palindrome (313452464254313).

The spelling of 201331232121211 in words is "two hundred one trillion, three hundred thirty-one billion, two hundred thirty-two million, one hundred twenty-one thousand, two hundred eleven".