21302012222222 has 8 divisors (see below), whose sum is σ = 31953267936216. Its totient is φ = 10650922910152.

The previous prime is 21302012222213. The next prime is 21302012222299. The reversal of 21302012222222 is 22222221020312.

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

It is a congruent number.

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, 41279948 + ... + 41792799.

It is an arithmetic number, because the mean of its divisors is an integer number (3994158492027).

Almost surely, 2^{21302012222222} is an apocalyptic number.

21302012222222 is a deficient number, since it is larger than the sum of its proper divisors (10651255713994).

21302012222222 is a wasteful number, since it uses less digits than its factorization.

21302012222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83200962.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 21302012222222 its reverse (22222221020312), we get a palindrome (43524233242534).

The spelling of 21302012222222 in words is "twenty-one trillion, three hundred two billion, twelve million, two hundred twenty-two thousand, two hundred twenty-two".