21222686307 has 8 divisors (see below), whose sum is σ = 28577082960. Its totient is φ = 14008373600.

The previous prime is 21222686269. The next prime is 21222686333. The reversal of 21222686307 is 70368622212.

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

It is a cyclic number.

It is not a de Polignac number, because 21222686307 - 2³⁰ = 20148944483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21222686347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35020632 + ... + 35021237.

It is an arithmetic number, because the mean of its divisors is an integer number (3572135370).

Almost surely, 2^21222686307 is an apocalyptic number.

21222686307 is a deficient number, since it is larger than the sum of its proper divisors (7354396653).

21222686307 is a wasteful number, since it uses less digits than its factorization.

21222686307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70041973.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 21222686307 in words is "twenty-one billion, two hundred twenty-two million, six hundred eighty-six thousand, three hundred seven".