70211 has 4 divisors (see below), whose sum is σ = 71424. Its totient is φ = 69000.

The previous prime is 70207. The next prime is 70223. The reversal of 70211 is 11207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11207 = 7 ⋅1601.

It is a cyclic number.

It is not a de Polignac number, because 70211 - 2² = 70207 is a prime.

It is a super-3 number, since 3×70211³ = 1038333176411793, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70192 and 70201.

It is not an unprimeable number, because it can be changed into a prime (70201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515 + ... + 636.

It is an arithmetic number, because the mean of its divisors is an integer number (17856).

2⁷⁰²¹¹ is an apocalyptic number.

70211 is the 119-th centered decagonal number.

70211 is a deficient number, since it is larger than the sum of its proper divisors (1213).

70211 is a wasteful number, since it uses less digits than its factorization.

70211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 70211 is about 264.9735835890. The cubic root of 70211 is about 41.2542205660.

Adding to 70211 its product of nonzero digits (14), we get a square (70225 = 265²).

Adding to 70211 its reverse (11207), we get a palindrome (81418).

The spelling of 70211 in words is "seventy thousand, two hundred eleven", and thus it is an iban number.