4220221950 has 144 divisors (see below), whose sum is σ = 13720505760. Its totient is φ = 907868160.

The previous prime is 4220221931. The next prime is 4220221969. The reversal of 4220221950 is 591220224.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4220221931) and next prime (4220221969).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14146 + ... + 92954.

It is an arithmetic number, because the mean of its divisors is an integer number (95281290).

Almost surely, 2^4220221950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4220221950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6860252880).

4220221950 is an abundant number, since it is smaller than the sum of its proper divisors (9500283810).

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

4220221950 is a wasteful number, since it uses less digits than its factorization.

4220221950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78851 (or 78843 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 4220221950 is about 64963.2353720164. The cubic root of 4220221950 is about 1616.0139198287.

The spelling of 4220221950 in words is "four billion, two hundred twenty million, two hundred twenty-one thousand, nine hundred fifty".