1201330221000 has 256 divisors, whose sum is σ = 4613109096960. Its totient is φ = 253467417600.

The previous prime is 1201330220917. The next prime is 1201330221023. The reversal of 1201330221000 is 1220331021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1927239 + ... + 2473238.

It is an arithmetic number, because the mean of its divisors is an integer number (18019957410).

Almost surely, 2^{1201330221000} is an apocalyptic number.

1201330221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201330221000 is an abundant number, since it is smaller than the sum of its proper divisors (3411778875960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201330221000 is a wasteful number, since it uses less digits than its factorization.

1201330221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400521 (or 4400507 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1201330221000 its reverse (1220331021), we get a palindrome (1202550552021).

The spelling of 1201330221000 in words is "one trillion, two hundred one billion, three hundred thirty million, two hundred twenty-one thousand".