2011221202331 has 16 divisors (see below), whose sum is σ = 2264913024000. Its totient is φ = 1769342335200.

The previous prime is 2011221202313. The next prime is 2011221202399. The reversal of 2011221202331 is 1332021221102.

It is a de Polignac number, because none of the positive numbers 2^k-2011221202331 is a prime.

It is a super-2 number, since 2×2011221202331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2011221202301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12025520 + ... + 12191618.

It is an arithmetic number, because the mean of its divisors is an integer number (141557064000).

Almost surely, 2^{2011221202331} is an apocalyptic number.

2011221202331 is a deficient number, since it is larger than the sum of its proper divisors (253691821669).

2011221202331 is a wasteful number, since it uses less digits than its factorization.

2011221202331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201650.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2011221202331 its reverse (1332021221102), we get a palindrome (3343242423433).

The spelling of 2011221202331 in words is "two trillion, eleven billion, two hundred twenty-one million, two hundred two thousand, three hundred thirty-one".