8220217948 has 12 divisors (see below), whose sum is σ = 14406634872. Its totient is φ = 4104036560.

The previous prime is 8220217933. The next prime is 8220217949. The reversal of 8220217948 is 8497120228.

It is a super-2 number, since 2×8220217948² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220217949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1515058 + ... + 1520473.

It is an arithmetic number, because the mean of its divisors is an integer number (1200552906).

Almost surely, 2^8220217948 is an apocalyptic number.

It is an amenable number.

8220217948 is a deficient number, since it is larger than the sum of its proper divisors (6186416924).

8220217948 is a wasteful number, since it uses less digits than its factorization.

8220217948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036212 (or 3036210 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 8220217948 is about 90665.4175967882. The cubic root of 8220217948 is about 2018.1856357998.

The spelling of 8220217948 in words is "eight billion, two hundred twenty million, two hundred seventeen thousand, nine hundred forty-eight".