11148420221 has 8 divisors (see below), whose sum is σ = 11736748800. Its totient is φ = 10560248640.

The previous prime is 11148420209. The next prime is 11148420247. The reversal of 11148420221 is 12202484111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11148420221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11148420251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123956 + ... + 194066.

It is an arithmetic number, because the mean of its divisors is an integer number (1467093600).

Almost surely, 2^11148420221 is an apocalyptic number.

It is an amenable number.

11148420221 is a deficient number, since it is larger than the sum of its proper divisors (588328579).

11148420221 is an equidigital number, since it uses as much as digits as its factorization.

11148420221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78499.

The product of its (nonzero) digits is 1024, while the sum is 26.

The spelling of 11148420221 in words is "eleven billion, one hundred forty-eight million, four hundred twenty thousand, two hundred twenty-one".