70121201 has 2 divisors, whose sum is σ = 70121202. Its totient is φ = 70121200.

The previous prime is 70121197. The next prime is 70121221. The reversal of 70121201 is 10212107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52940176 + 17181025 = 7276^2 + 4145^2 .

It is a cyclic number.

It is not a de Polignac number, because 70121201 - 2² = 70121197 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70121221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35060600 + 35060601.

It is an arithmetic number, because the mean of its divisors is an integer number (35060601).

Almost surely, 2^70121201 is an apocalyptic number.

It is an amenable number.

70121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

70121201 is an equidigital number, since it uses as much as digits as its factorization.

70121201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 70121201 is about 8373.8402779131. The cubic root of 70121201 is about 412.3662518328.

Adding to 70121201 its reverse (10212107), we get a palindrome (80333308).

The spelling of 70121201 in words is "seventy million, one hundred twenty-one thousand, two hundred one".