2002012223221 has 8 divisors (see below), whose sum is σ = 2074686946200. Its totient is φ = 1929580154880.

The previous prime is 2002012223149. The next prime is 2002012223243. The reversal of 2002012223221 is 1223222102002.

It can be written as a sum of positive squares in 4 ways, for example, as 509610376900 + 1492401846321 = 713870^2 + 1221639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2002012223221 - 2¹¹ = 2002012221173 is a prime.

It is a super-2 number, since 2×2002012223221² (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 (2002012223621) 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, 60646860 + ... + 60679861.

It is an arithmetic number, because the mean of its divisors is an integer number (259335868275).

Almost surely, 2^{2002012223221} is an apocalyptic number.

It is an amenable number.

2002012223221 is a deficient number, since it is larger than the sum of its proper divisors (72674722979).

2002012223221 is a wasteful number, since it uses less digits than its factorization.

2002012223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121327319.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2002012223221 its reverse (1223222102002), we get a palindrome (3225234325223).

The spelling of 2002012223221 in words is "two trillion, two billion, twelve million, two hundred twenty-three thousand, two hundred twenty-one".