70122211 has 2 divisors, whose sum is σ = 70122212. Its totient is φ = 70122210.

The previous prime is 70122209. The next prime is 70122253. The reversal of 70122211 is 11222107.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70122211 - 2¹ = 70122209 is a prime.

Together with 70122209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70122281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35061105 + 35061106.

It is an arithmetic number, because the mean of its divisors is an integer number (35061106).

Almost surely, 2^70122211 is an apocalyptic number.

70122211 is a deficient number, since it is larger than the sum of its proper divisors (1).

70122211 is an equidigital number, since it uses as much as digits as its factorization.

70122211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 70122211 is about 8373.9005845544. The cubic root of 70122211 is about 412.3682316806.

Adding to 70122211 its reverse (11222107), we get a palindrome (81344318).

The spelling of 70122211 in words is "seventy million, one hundred twenty-two thousand, two hundred eleven".