1219253223204 has 81 divisors (see below), whose sum is σ = 3126038742099. Its totient is φ = 400691370240.

The previous prime is 1219253223157. The next prime is 1219253223217. The reversal of 1219253223204 is 4023223529121.

The square root of 1219253223204 is 1104198.

It is a perfect power (a square), and thus also a powerful number.

1219253223204 is a `hidden beast` number, since 1 + 2 + 1 + 9 + 2 + 5 + 322 + 320 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 493267428900 + 725985794304 = 702330^2 + 852048^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 483637464 + ... + 483639984.

Almost surely, 2^{1219253223204} is an apocalyptic number.

1219253223204 is the 1104198-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1219253223204

1219253223204 is an abundant number, since it is smaller than the sum of its proper divisors (1906785518895).

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

1219253223204 is an frugal number, since it uses more digits than its factorization.

1219253223204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5198 (or 2599 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Multiplying 1219253223204 by its sum of digits (36), we get a square (43893116035344 = 6625188²).

1219253223204 divided by its sum of digits (36) gives a square (33868145089 = 184033²).

The spelling of 1219253223204 in words is "one trillion, two hundred nineteen billion, two hundred fifty-three million, two hundred twenty-three thousand, two hundred four".