21303010223212 has 12 divisors (see below), whose sum is σ = 37281458146240. Its totient is φ = 10651165038576.

The previous prime is 21303010223203. The next prime is 21303010223249. The reversal of 21303010223212 is 21232201030312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84877287 + ... + 85127902.

Almost surely, 2^{21303010223212} is an apocalyptic number.

It is an amenable number.

21303010223212 is a deficient number, since it is larger than the sum of its proper divisors (15978447923028).

21303010223212 is a wasteful number, since it uses less digits than its factorization.

21303010223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170036520 (or 170036518 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21303010223212 its reverse (21232201030312), we get a palindrome (42535211253524).

The spelling of 21303010223212 in words is "twenty-one trillion, three hundred three billion, ten million, two hundred twenty-three thousand, two hundred twelve".