70022220 has 96 divisors (see below), whose sum is σ = 208051200. Its totient is φ = 17547264.

The previous prime is 70022177. The next prime is 70022221. The reversal of 70022220 is 2222007.

It is a super-2 number, since 2×70022220² = 9806222587456800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 70022220.

It is not an unprimeable number, because it can be changed into a prime (70022221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272332 + ... + 272588.

It is an arithmetic number, because the mean of its divisors is an integer number (2167200).

Almost surely, 2^70022220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104025600).

70022220 is an abundant number, since it is smaller than the sum of its proper divisors (138028980).

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

70022220 is a wasteful number, since it uses less digits than its factorization.

70022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 70022220 is about 8367.9280589642. The cubic root of 70022220 is about 412.1721324911.

Adding to 70022220 its reverse (2222007), we get a palindrome (72244227).

The spelling of 70022220 in words is "seventy million, twenty-two thousand, two hundred twenty".