72120222201 has 8 divisors (see below), whose sum is σ = 96507446464. Its totient is φ = 47906573040.

The previous prime is 72120222199. The next prime is 72120222203. The reversal of 72120222201 is 10222202127.

It is an interprime number because it is at equal distance from previous prime (72120222199) and next prime (72120222203).

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

It is not a de Polignac number, because 72120222201 - 2¹ = 72120222199 is a prime.

It is a super-2 number, since 2×72120222201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72120222203) 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, 43392805 + ... + 43394466.

It is an arithmetic number, because the mean of its divisors is an integer number (12063430808).

Almost surely, 2^72120222201 is an apocalyptic number.

It is an amenable number.

72120222201 is a deficient number, since it is larger than the sum of its proper divisors (24387224263).

72120222201 is a wasteful number, since it uses less digits than its factorization.

72120222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86787551.

The product of its (nonzero) digits is 448, while the sum is 21.

Adding to 72120222201 its reverse (10222202127), we get a palindrome (82342424328).

The spelling of 72120222201 in words is "seventy-two billion, one hundred twenty million, two hundred twenty-two thousand, two hundred one".