2219213540 has 12 divisors (see below), whose sum is σ = 4660348476. Its totient is φ = 887685408.

The previous prime is 2219213501. The next prime is 2219213561. The reversal of 2219213540 is 453129122.

It can be written as a sum of positive squares in 2 ways, for example, as 1061717056 + 1157496484 = 32584^2 + 34022^2 .

It is a super-2 number, since 2×2219213540² = 9849817472238663200, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 55480319 + ... + 55480358.

It is an arithmetic number, because the mean of its divisors is an integer number (388362373).

Almost surely, 2^2219213540 is an apocalyptic number.

2219213540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2219213540 is an abundant number, since it is smaller than the sum of its proper divisors (2441134936).

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

2219213540 is a wasteful number, since it uses less digits than its factorization.

2219213540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110960686 (or 110960684 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2219213540 is about 47108.5293763242. The cubic root of 2219213540 is about 1304.3666847705.

The spelling of 2219213540 in words is "two billion, two hundred nineteen million, two hundred thirteen thousand, five hundred forty".