201211113222031 has 8 divisors (see below), whose sum is σ = 221765950468944. Its totient is φ = 181033428952320.

The previous prime is 201211113222001. The next prime is 201211113222079. The reversal of 201211113222031 is 130222311112102.

It is a happy number.

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 201211113222031 - 2¹³ = 201211113213839 is a prime.

It is a super-2 number, since 2×201211113222031² (a number of 29 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 = 201211113221993 and 201211113222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211113222001) 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, 94288243180 + ... + 94288245313.

It is an arithmetic number, because the mean of its divisors is an integer number (27720743808618).

Almost surely, 2^{201211113222031} is an apocalyptic number.

201211113222031 is a deficient number, since it is larger than the sum of its proper divisors (20554837246913).

201211113222031 is a wasteful number, since it uses less digits than its factorization.

201211113222031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188576488601.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 201211113222031 its reverse (130222311112102), we get a palindrome (331433424334133).

The spelling of 201211113222031 in words is "two hundred one trillion, two hundred eleven billion, one hundred thirteen million, two hundred twenty-two thousand, thirty-one".