1200221608 has 32 divisors (see below), whose sum is σ = 2331252000. Its totient is φ = 578612160.

The previous prime is 1200221597. The next prime is 1200221629. The reversal of 1200221608 is 8061220021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184963 + ... + 191341.

It is an arithmetic number, because the mean of its divisors is an integer number (72851625).

Almost surely, 2^1200221608 is an apocalyptic number.

It is an amenable number.

1200221608 is a deficient number, since it is larger than the sum of its proper divisors (1131030392).

1200221608 is a wasteful number, since it uses less digits than its factorization.

1200221608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225 (or 7221 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1200221608 is about 34644.2146396769. The cubic root of 1200221608 is about 1062.7239800563.

Adding to 1200221608 its reverse (8061220021), we get a palindrome (9261441629).

The spelling of 1200221608 in words is "one billion, two hundred million, two hundred twenty-one thousand, six hundred eight".