2031211112201 has 4 divisors (see below), whose sum is σ = 2049186431892. Its totient is φ = 2013235792512.

The previous prime is 2031211112197. The next prime is 2031211112257. The reversal of 2031211112201 is 1022111121302.

It is a happy number.

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 75241038601 + 1955970073600 = 274301^2 + 1398560^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031211112201 - 2² = 2031211112197 is a prime.

It is a super-2 number, since 2×2031211112201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031211112201.

It is not an unprimeable number, because it can be changed into a prime (2031211112291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8987659676 + ... + 8987659901.

It is an arithmetic number, because the mean of its divisors is an integer number (512296607973).

Almost surely, 2^{2031211112201} is an apocalyptic number.

It is an amenable number.

2031211112201 is a deficient number, since it is larger than the sum of its proper divisors (17975319691).

2031211112201 is a wasteful number, since it uses less digits than its factorization.

2031211112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17975319690.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2031211112201 its reverse (1022111121302), we get a palindrome (3053322233503).

It can be divided in two parts, 2031211 and 112201, that added together give a palindrome (2143412).

The spelling of 2031211112201 in words is "two trillion, thirty-one billion, two hundred eleven million, one hundred twelve thousand, two hundred one".