72226211 has 8 divisors (see below), whose sum is σ = 75459600. Its totient is φ = 69042400.

The previous prime is 72226199. The next prime is 72226223. The reversal of 72226211 is 11262227.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72226199) and next prime (72226223).

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 72226211 - 2¹⁰ = 72225187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72226291) 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, 9401 + ... + 15258.

It is an arithmetic number, because the mean of its divisors is an integer number (9432450).

Almost surely, 2^72226211 is an apocalyptic number.

72226211 is a deficient number, since it is larger than the sum of its proper divisors (3233389).

72226211 is a wasteful number, since it uses less digits than its factorization.

72226211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24789.

The product of its digits is 672, while the sum is 23.

The square root of 72226211 is about 8498.6005318523. The cubic root of 72226211 is about 416.4519923126.

Adding to 72226211 its reverse (11262227), we get a palindrome (83488438).

The spelling of 72226211 in words is "seventy-two million, two hundred twenty-six thousand, two hundred eleven".