1020030221100 has 144 divisors (see below), whose sum is σ = 3330606827520. Its totient is φ = 238753132800.

The previous prime is 1020030221051. The next prime is 1020030221101. The reversal of 1020030221100 is 11220300201.

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

It is not an unprimeable number, because it can be changed into a prime (1020030221101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5233612 + ... + 5425011.

It is an arithmetic number, because the mean of its divisors is an integer number (23129214080).

Almost surely, 2^{1020030221100} is an apocalyptic number.

1020030221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020030221100 is an abundant number, since it is smaller than the sum of its proper divisors (2310576606420).

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

1020030221100 is a wasteful number, since it uses less digits than its factorization.

1020030221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10658680 (or 10658673 counting only the distinct ones).

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

Adding to 1020030221100 its reverse (11220300201), we get a palindrome (1031250521301).

The spelling of 1020030221100 in words is "one trillion, twenty billion, thirty million, two hundred twenty-one thousand, one hundred".