100220020000 has 60 divisors (see below), whose sum is σ = 246556331406. Its totient is φ = 40088000000.

The previous prime is 100220019973. The next prime is 100220020031. The reversal of 100220020000 is 20022001.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 1716942096 + 98503077904 = 41436^2 + 313852^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2485501 + ... + 2525500.

Almost surely, 2^100220020000 is an apocalyptic number.

100220020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100220020000 is an abundant number, since it is smaller than the sum of its proper divisors (146336311406).

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

100220020000 is an frugal number, since it uses more digits than its factorization.

100220020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011031 (or 5011008 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 100220020000 its reverse (20022001), we get a palindrome (100240042001).

The spelling of 100220020000 in words is "one hundred billion, two hundred twenty million, twenty thousand".