72221617101 has 8 divisors (see below), whose sum is σ = 96779387200. Its totient is φ = 47905795872.

The previous prime is 72221617099. The next prime is 72221617103. The reversal of 72221617101 is 10171612227.

It is an interprime number because it is at equal distance from previous prime (72221617099) and next prime (72221617103).

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

It is not a de Polignac number, because 72221617101 - 2¹ = 72221617099 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72221617103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60486520 + ... + 60487713.

It is an arithmetic number, because the mean of its divisors is an integer number (12097423400).

Almost surely, 2^72221617101 is an apocalyptic number.

It is an amenable number.

72221617101 is a deficient number, since it is larger than the sum of its proper divisors (24557770099).

72221617101 is a wasteful number, since it uses less digits than its factorization.

72221617101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120974435.

The product of its (nonzero) digits is 2352, while the sum is 30.

The spelling of 72221617101 in words is "seventy-two billion, two hundred twenty-one million, six hundred seventeen thousand, one hundred one".