2013202101221 has 8 divisors (see below), whose sum is σ = 2133149457600. Its totient is φ = 1893424045248.

The previous prime is 2013202101181. The next prime is 2013202101233. The reversal of 2013202101221 is 1221012023102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013202101221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2013202101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013202107221) 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, 42300611 + ... + 42348176.

It is an arithmetic number, because the mean of its divisors is an integer number (266643682200).

Almost surely, 2^{2013202101221} is an apocalyptic number.

It is an amenable number.

2013202101221 is a deficient number, since it is larger than the sum of its proper divisors (119947356379).

2013202101221 is a wasteful number, since it uses less digits than its factorization.

2013202101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84650203.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2013202101221 its reverse (1221012023102), we get a palindrome (3234214124323).

The spelling of 2013202101221 in words is "two trillion, thirteen billion, two hundred two million, one hundred one thousand, two hundred twenty-one".