1200033000221 has 12 divisors (see below), whose sum is σ = 1319621599296. Its totient is φ = 1090461822120.

The previous prime is 1200033000217. The next prime is 1200033000239. The reversal of 1200033000221 is 1220003300021.

It is a happy number.

It is not a de Polignac number, because 1200033000221 - 2² = 1200033000217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200033000196 and 1200033000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200033000241) 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, 1891535 + ... + 2444988.

It is an arithmetic number, because the mean of its divisors is an integer number (109968466608).

Almost surely, 2^{1200033000221} is an apocalyptic number.

1200033000221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1200033000221 is a deficient number, since it is larger than the sum of its proper divisors (119588599075).

1200033000221 is a wasteful number, since it uses less digits than its factorization.

1200033000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4338832 (or 4338821 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1200033000221 its reverse (1220003300021), we get a palindrome (2420036300242).

The spelling of 1200033000221 in words is "one trillion, two hundred billion, thirty-three million, two hundred twenty-one", and thus it is an aban number.