21422230651 has 8 divisors (see below), whose sum is σ = 21459049920. Its totient is φ = 21385437888.

The previous prime is 21422230517. The next prime is 21422230657. The reversal of 21422230651 is 15603222412.

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 21422230651 - 2¹⁵ = 21422197883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21422230657) 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, 2208430 + ... + 2218108.

It is an arithmetic number, because the mean of its divisors is an integer number (2682381240).

Almost surely, 2^21422230651 is an apocalyptic number.

21422230651 is a deficient number, since it is larger than the sum of its proper divisors (36819269).

21422230651 is an equidigital number, since it uses as much as digits as its factorization.

21422230651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13253.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 21422230651 in words is "twenty-one billion, four hundred twenty-two million, two hundred thirty thousand, six hundred fifty-one".