72210220001 has 8 divisors (see below), whose sum is σ = 72931689600. Its totient is φ = 71491908528.

The previous prime is 72210219997. The next prime is 72210220003. The reversal of 72210220001 is 10002201227.

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

It is a cyclic number.

It is not a de Polignac number, because 72210220001 - 2² = 72210219997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72210220003) 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, 743561 + ... + 835046.

It is an arithmetic number, because the mean of its divisors is an integer number (9116461200).

Almost surely, 2^72210220001 is an apocalyptic number.

It is an amenable number.

72210220001 is a deficient number, since it is larger than the sum of its proper divisors (721469599).

72210220001 is a wasteful number, since it uses less digits than its factorization.

72210220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579063.

The product of its (nonzero) digits is 112, while the sum is 17.

Adding to 72210220001 its reverse (10002201227), we get a palindrome (82212421228).

The spelling of 72210220001 in words is "seventy-two billion, two hundred ten million, two hundred twenty thousand, one".