2002201222021 has 128 divisors (see below), whose sum is σ = 2854857600000. Its totient is φ = 1390317626880.

The previous prime is 2002201222009. The next prime is 2002201222039. The reversal of 2002201222021 is 1202221022002.

It is not a de Polignac number, because 2002201222021 - 2⁹ = 2002201221509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002201221986 and 2002201222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002201222621) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 240384985 + ... + 240393313.

It is an arithmetic number, because the mean of its divisors is an integer number (22303575000).

Almost surely, 2^{2002201222021} is an apocalyptic number.

It is an amenable number.

2002201222021 is a deficient number, since it is larger than the sum of its proper divisors (852656377979).

2002201222021 is an equidigital number, since it uses as much as digits as its factorization.

2002201222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8429 (or 8389 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2002201222021 its reverse (1202221022002), we get a palindrome (3204422244023).

It can be divided in two parts, 2002201 and 222021, that added together give a palindrome (2224222).

The spelling of 2002201222021 in words is "two trillion, two billion, two hundred one million, two hundred twenty-two thousand, twenty-one".