72211219 has 2 divisors, whose sum is σ = 72211220. Its totient is φ = 72211218.

The previous prime is 72211213. The next prime is 72211253. The reversal of 72211219 is 91211227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72211219 - 2⁵ = 72211187 is a prime.

It is a super-2 number, since 2×72211219² = 10428920298931922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72211193 and 72211202.

It is not a weakly prime, because it can be changed into another prime (72211213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36105609 + 36105610.

It is an arithmetic number, because the mean of its divisors is an integer number (36105610).

Almost surely, 2^72211219 is an apocalyptic number.

72211219 is a deficient number, since it is larger than the sum of its proper divisors (1).

72211219 is an equidigital number, since it uses as much as digits as its factorization.

72211219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 25.

The square root of 72211219 is about 8497.7184585040. The cubic root of 72211219 is about 416.4231759950.

The spelling of 72211219 in words is "seventy-two million, two hundred eleven thousand, two hundred nineteen".