201072171622 has 8 divisors (see below), whose sum is σ = 344695151376. Its totient is φ = 86173787832.

The previous prime is 201072171589. The next prime is 201072171623. The reversal of 201072171622 is 226171270102.

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

It is a super-2 number, since 2×201072171622² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201072171623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7181148973 + ... + 7181149000.

It is an arithmetic number, because the mean of its divisors is an integer number (43086893922).

Almost surely, 2^201072171622 is an apocalyptic number.

201072171622 is a deficient number, since it is larger than the sum of its proper divisors (143622979754).

201072171622 is a wasteful number, since it uses less digits than its factorization.

201072171622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14362297982.

The product of its (nonzero) digits is 4704, while the sum is 31.

The spelling of 201072171622 in words is "two hundred one billion, seventy-two million, one hundred seventy-one thousand, six hundred twenty-two".