2002201111221 has 128 divisors (see below), whose sum is σ = 2958274068480. Its totient is φ = 1201027027200.

The previous prime is 2002201111219. The next prime is 2002201111223. The reversal of 2002201111221 is 1221111022002.

It is an interprime number because it is at equal distance from previous prime (2002201111219) and next prime (2002201111223).

It is not a de Polignac number, because 2002201111221 - 2¹ = 2002201111219 is a prime.

It is a super-2 number, since 2×2002201111221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2002201111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002201111223) 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, 2330850690 + ... + 2330851548.

It is an arithmetic number, because the mean of its divisors is an integer number (23111516160).

Almost surely, 2^{2002201111221} is an apocalyptic number.

It is an amenable number.

2002201111221 is a deficient number, since it is larger than the sum of its proper divisors (956072957259).

2002201111221 is a wasteful number, since it uses less digits than its factorization.

2002201111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247.

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

Adding to 2002201111221 its reverse (1221111022002), we get a palindrome (3223312133223).

The spelling of 2002201111221 in words is "two trillion, two billion, two hundred one million, one hundred eleven thousand, two hundred twenty-one".