2002010201221 has 16 divisors (see below), whose sum is σ = 2148050107840. Its totient is φ = 1860324485760.

The previous prime is 2002010201197. The next prime is 2002010201231. The reversal of 2002010201221 is 1221020102002.

It is a happy number.

It is not a de Polignac number, because 2002010201221 - 2⁵ = 2002010201189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002010201231) 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, 3736275 + ... + 4238368.

It is an arithmetic number, because the mean of its divisors is an integer number (134253131740).

Almost surely, 2^{2002010201221} is an apocalyptic number.

It is an amenable number.

2002010201221 is a deficient number, since it is larger than the sum of its proper divisors (146039906619).

2002010201221 is a wasteful number, since it uses less digits than its factorization.

2002010201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7974916.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2002010201221 its reverse (1221020102002), we get a palindrome (3223030303223).

The spelling of 2002010201221 in words is "two trillion, two billion, ten million, two hundred one thousand, two hundred twenty-one".