21222389294195 has 16 divisors (see below), whose sum is σ = 26965204469280. Its totient is φ = 15979041099264.

The previous prime is 21222389294159. The next prime is 21222389294201. The reversal of 21222389294195 is 59149298322212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21222389294195 - 2³⁴ = 21205209425011 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7035464 + ... + 9588666.

It is an arithmetic number, because the mean of its divisors is an integer number (1685325279330).

Almost surely, 2^{21222389294195} is an apocalyptic number.

21222389294195 is a deficient number, since it is larger than the sum of its proper divisors (5742815175085).

21222389294195 is a wasteful number, since it uses less digits than its factorization.

21222389294195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651014.

The product of its digits is 11197440, while the sum is 59.

The spelling of 21222389294195 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred eighty-nine million, two hundred ninety-four thousand, one hundred ninety-five".