21220122095 has 8 divisors (see below), whose sum is σ = 25464967920. Its totient is φ = 16975550080.

The previous prime is 21220122047. The next prime is 21220122101. The reversal of 21220122095 is 59022102212.

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

It is not a de Polignac number, because 21220122095 - 2¹⁸ = 21219859951 is a prime.

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, 192476 + ... + 281934.

It is an arithmetic number, because the mean of its divisors is an integer number (3183120990).

Almost surely, 2^21220122095 is an apocalyptic number.

21220122095 is a deficient number, since it is larger than the sum of its proper divisors (4244845825).

21220122095 is an equidigital number, since it uses as much as digits as its factorization.

21220122095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136905.

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 21220122095 in words is "twenty-one billion, two hundred twenty million, one hundred twenty-two thousand, ninety-five".