2002101112221 has 16 divisors (see below), whose sum is σ = 3057410002944. Its totient is φ = 1141586805744.

The previous prime is 2002101112211. The next prime is 2002101112229. The reversal of 2002101112221 is 1222111012002.

It is not a de Polignac number, because 2002101112221 - 2¹¹ = 2002101110173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002101112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002101112229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102947241 + ... + 102966686.

It is an arithmetic number, because the mean of its divisors is an integer number (191088125184).

Almost surely, 2^{2002101112221} is an apocalyptic number.

2002101112221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2002101112221 is a deficient number, since it is larger than the sum of its proper divisors (1055308890723).

2002101112221 is a wasteful number, since it uses less digits than its factorization.

2002101112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205914400.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2002101112221 its reverse (1222111012002), we get a palindrome (3224212124223).

The spelling of 2002101112221 in words is "two trillion, two billion, one hundred one million, one hundred twelve thousand, two hundred twenty-one".