70201220 has 24 divisors (see below), whose sum is σ = 147600600. Its totient is φ = 28046592.

The previous prime is 70201189. The next prime is 70201277. The reversal of 70201220 is 2210207.

It can be written as a sum of positive squares in 4 ways, for example, as 678976 + 69522244 = 824^2 + 8338^2 .

It is a super-2 number, since 2×70201220² = 9856422578976800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70201195 and 70201204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21026 + ... + 24134.

It is an arithmetic number, because the mean of its divisors is an integer number (6150025).

Almost surely, 2^70201220 is an apocalyptic number.

It is an amenable number.

70201220 is an abundant number, since it is smaller than the sum of its proper divisors (77399380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70201220 is a wasteful number, since it uses less digits than its factorization.

70201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4247 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 70201220 is about 8378.6168309572. The cubic root of 70201220 is about 412.5230498292.

Adding to 70201220 its reverse (2210207), we get a palindrome (72411427).

The spelling of 70201220 in words is "seventy million, two hundred one thousand, two hundred twenty".