1001020222000 has 80 divisors (see below), whose sum is σ = 2466136344672. Its totient is φ = 392853177600.

The previous prime is 1001020221989. The next prime is 1001020222001. The reversal of 1001020222000 is 2220201001.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1001020222001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4615794 + ... + 4827793.

Almost surely, 2^{1001020222000} is an apocalyptic number.

1001020222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001020222000 is an abundant number, since it is smaller than the sum of its proper divisors (1465116122672).

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

1001020222000 is an equidigital number, since it uses as much as digits as its factorization.

1001020222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9443663 (or 9443647 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1001020222000 its reverse (2220201001), we get a palindrome (1003240423001).

The spelling of 1001020222000 in words is "one trillion, one billion, twenty million, two hundred twenty-two thousand".