2001222202031 has 16 divisors (see below), whose sum is σ = 2245517786400. Its totient is φ = 1770751075968.

The previous prime is 2001222202013. The next prime is 2001222202039. The reversal of 2001222202031 is 1302022221002.

It is a cyclic number.

It is not a de Polignac number, because 2001222202031 - 2¹⁸ = 2001221939887 is a prime.

It is a super-2 number, since 2×2001222202031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001222202039) 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, 19042136 + ... + 19146941.

It is an arithmetic number, because the mean of its divisors is an integer number (140344861650).

Almost surely, 2^{2001222202031} is an apocalyptic number.

2001222202031 is a deficient number, since it is larger than the sum of its proper divisors (244295584369).

2001222202031 is a wasteful number, since it uses less digits than its factorization.

2001222202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38189258.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2001222202031 its reverse (1302022221002), we get a palindrome (3303244423033).

The spelling of 2001222202031 in words is "two trillion, one billion, two hundred twenty-two million, two hundred two thousand, thirty-one".