221135383458 has 48 divisors (see below), whose sum is σ = 535432034592. Its totient is φ = 65376312000.

The previous prime is 221135383367. The next prime is 221135383463. The reversal of 221135383458 is 854383531122.

221135383458 is a `hidden beast` number, since 2 + 2 + 113 + 5 + 3 + 83 + 458 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13611948 + ... + 13628183.

It is an arithmetic number, because the mean of its divisors is an integer number (11154834054).

Almost surely, 2^221135383458 is an apocalyptic number.

221135383458 is an abundant number, since it is smaller than the sum of its proper divisors (314296651134).

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

221135383458 is a wasteful number, since it uses less digits than its factorization.

221135383458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27240191 (or 27240188 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 221135383458 in words is "two hundred twenty-one billion, one hundred thirty-five million, three hundred eighty-three thousand, four hundred fifty-eight".