201213022231 has 12 divisors (see below), whose sum is σ = 217897269912. Its totient is φ = 185721702816.

The previous prime is 201213022229. The next prime is 201213022271. The reversal of 201213022231 is 132220312102.

201213022231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201213022231 - 2¹ = 201213022229 is a prime.

It is a super-2 number, since 2×201213022231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201213022199 and 201213022208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201213022271) 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 11 ways as a sum of consecutive naturals, for example, 2904165 + ... + 2972641.

It is an arithmetic number, because the mean of its divisors is an integer number (18158105826).

Almost surely, 2^201213022231 is an apocalyptic number.

201213022231 is a deficient number, since it is larger than the sum of its proper divisors (16684247681).

201213022231 is a wasteful number, since it uses less digits than its factorization.

201213022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85890 (or 85877 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201213022231 its reverse (132220312102), we get a palindrome (333433334333).

The spelling of 201213022231 in words is "two hundred one billion, two hundred thirteen million, twenty-two thousand, two hundred thirty-one".