1220011203000 has 64 divisors (see below), whose sum is σ = 3806434962720. Its totient is φ = 325336320000.

The previous prime is 1220011202957. The next prime is 1220011203013. The reversal of 1220011203000 is 3021100221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203332201 + ... + 203338200.

Almost surely, 2^{1220011203000} is an apocalyptic number.

1220011203000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220011203000 is an abundant number, since it is smaller than the sum of its proper divisors (2586423759720).

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

1220011203000 is a wasteful number, since it uses less digits than its factorization.

1220011203000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406670425 (or 406670411 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1220011203000 its reverse (3021100221), we get a palindrome (1223032303221).

The spelling of 1220011203000 in words is "one trillion, two hundred twenty billion, eleven million, two hundred three thousand".