216002121203 has 16 divisors (see below), whose sum is σ = 245543499360. Its totient is φ = 188210400000.

The previous prime is 216002121199. The next prime is 216002121221. The reversal of 216002121203 is 302121200612.

It is a cyclic number.

It is not a de Polignac number, because 216002121203 - 2² = 216002121199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216002121103) 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, 2427548 + ... + 2514953.

It is an arithmetic number, because the mean of its divisors is an integer number (15346468710).

Almost surely, 2^216002121203 is an apocalyptic number.

216002121203 is a deficient number, since it is larger than the sum of its proper divisors (29541378157).

216002121203 is a wasteful number, since it uses less digits than its factorization.

216002121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4942678.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 216002121203 its reverse (302121200612), we get a palindrome (518123321815).

The spelling of 216002121203 in words is "two hundred sixteen billion, two million, one hundred twenty-one thousand, two hundred three".