21422775070163 has 32 divisors (see below), whose sum is σ = 23210800128000. Its totient is φ = 19712073427200.

The previous prime is 21422775070111. The next prime is 21422775070231. The reversal of 21422775070163 is 36107057722412.

It is not a de Polignac number, because 21422775070163 - 2¹² = 21422775066067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21422772070163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21196628 + ... + 22184286.

It is an arithmetic number, because the mean of its divisors is an integer number (725337504000).

Almost surely, 2^{21422775070163} is an apocalyptic number.

21422775070163 is a deficient number, since it is larger than the sum of its proper divisors (1788025057837).

21422775070163 is a wasteful number, since it uses less digits than its factorization.

21422775070163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987995.

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 21422775070163 in words is "twenty-one trillion, four hundred twenty-two billion, seven hundred seventy-five million, seventy thousand, one hundred sixty-three".