2172305221622 has 32 divisors (see below), whose sum is σ = 3469227952320. Its totient is φ = 1017871254400.

The previous prime is 2172305221621. The next prime is 2172305221637. The reversal of 2172305221622 is 2261225032712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172305221621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1073504 + ... + 2344572.

It is an arithmetic number, because the mean of its divisors is an integer number (108413373510).

Almost surely, 2^{2172305221622} is an apocalyptic number.

2172305221622 is a deficient number, since it is larger than the sum of its proper divisors (1296922730698).

2172305221622 is a wasteful number, since it uses less digits than its factorization.

2172305221622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271848.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 2172305221622 in words is "two trillion, one hundred seventy-two billion, three hundred five million, two hundred twenty-one thousand, six hundred twenty-two".