21213200302 has 16 divisors (see below), whose sum is σ = 36961643232. Its totient is φ = 8942332320.

The previous prime is 21213200257. The next prime is 21213200329. The reversal of 21213200302 is 20300231212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12419053 + ... + 12420760.

It is an arithmetic number, because the mean of its divisors is an integer number (2310102702).

Almost surely, 2^21213200302 is an apocalyptic number.

21213200302 is a deficient number, since it is larger than the sum of its proper divisors (15748442930).

21213200302 is a wasteful number, since it uses less digits than its factorization.

21213200302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24839883.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21213200302 its reverse (20300231212), we get a palindrome (41513431514).

The spelling of 21213200302 in words is "twenty-one billion, two hundred thirteen million, two hundred thousand, three hundred two".