70221029 has 2 divisors, whose sum is σ = 70221030. Its totient is φ = 70221028.

The previous prime is 70221023. The next prime is 70221037. The reversal of 70221029 is 92012207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61984129 + 8236900 = 7873^2 + 2870^2 .

It is a cyclic number.

It is not a de Polignac number, because 70221029 - 2⁴ = 70221013 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70220995 and 70221013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70221023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35110514 + 35110515.

It is an arithmetic number, because the mean of its divisors is an integer number (35110515).

Almost surely, 2^70221029 is an apocalyptic number.

It is an amenable number.

70221029 is a deficient number, since it is larger than the sum of its proper divisors (1).

70221029 is an equidigital number, since it uses as much as digits as its factorization.

70221029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 70221029 is about 8379.7988639346. The cubic root of 70221029 is about 412.5618473535.

The spelling of 70221029 in words is "seventy million, two hundred twenty-one thousand, twenty-nine".