11463552221 has 12 divisors (see below), whose sum is σ = 12752257056. Its totient is φ = 10295842920.

The previous prime is 11463552203. The next prime is 11463552229. The reversal of 11463552221 is 12225536411.

It is not a de Polignac number, because 11463552221 - 2⁶ = 11463552157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11463552229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560681 + ... + 580766.

It is an arithmetic number, because the mean of its divisors is an integer number (1062688088).

Almost surely, 2^11463552221 is an apocalyptic number.

11463552221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11463552221 is a deficient number, since it is larger than the sum of its proper divisors (1288704835).

11463552221 is a wasteful number, since it uses less digits than its factorization.

11463552221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141552 (or 1141541 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The spelling of 11463552221 in words is "eleven billion, four hundred sixty-three million, five hundred fifty-two thousand, two hundred twenty-one".