2002013221123 has 4 divisors (see below), whose sum is σ = 2002016062800. Its totient is φ = 2002010379448.

The previous prime is 2002013221121. The next prime is 2002013221127. The reversal of 2002013221123 is 3211223102002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2002013221123 - 2¹ = 2002013221121 is a prime.

It is a super-2 number, since 2×2002013221123² (a number of 25 digits) contains 22 as substring.

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 2002013221123.

It is not an unprimeable number, because it can be changed into a prime (2002013221121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516186 + ... + 2066512.

It is an arithmetic number, because the mean of its divisors is an integer number (500504015700).

Almost surely, 2^{2002013221123} is an apocalyptic number.

2002013221123 is a deficient number, since it is larger than the sum of its proper divisors (2841677).

2002013221123 is a wasteful number, since it uses less digits than its factorization.

2002013221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841676.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2002013221123 its reverse (3211223102002), we get a palindrome (5213236323125).

The spelling of 2002013221123 in words is "two trillion, two billion, thirteen million, two hundred twenty-one thousand, one hundred twenty-three".