2219851000 has 128 divisors (see below), whose sum is σ = 5336622720. Its totient is φ = 864000000.

The previous prime is 2219850979. The next prime is 2219851013. The reversal of 2219851000 is 1589122.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2219851000.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 9210880 + ... + 9211120.

It is an arithmetic number, because the mean of its divisors is an integer number (41692365).

Almost surely, 2^2219851000 is an apocalyptic number.

2219851000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2219851000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2668311360).

2219851000 is an abundant number, since it is smaller than the sum of its proper divisors (3116771720).

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

2219851000 is a wasteful number, since it uses less digits than its factorization.

2219851000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 2219851000 is about 47115.2947565862. The cubic root of 2219851000 is about 1304.4915641435.

The spelling of 2219851000 in words is "two billion, two hundred nineteen million, eight hundred fifty-one thousand".