1221008848 has 20 divisors (see below), whose sum is σ = 2376320128. Its totient is φ = 607764960.

The previous prime is 1221008839. The next prime is 1221008849. The reversal of 1221008848 is 8488001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221008849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167538 + ... + 174673.

Almost surely, 2^1221008848 is an apocalyptic number.

It is an amenable number.

1221008848 is a deficient number, since it is larger than the sum of its proper divisors (1155311280).

1221008848 is a wasteful number, since it uses less digits than its factorization.

1221008848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342442 (or 342436 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 34.

The square root of 1221008848 is about 34942.9370259570. The cubic root of 1221008848 is about 1068.8241801709.

The spelling of 1221008848 in words is "one billion, two hundred twenty-one million, eight thousand, eight hundred forty-eight".