220220021002000 has 80 divisors (see below), whose sum is σ = 535015670626944. Its totient is φ = 87670529520000.

The previous prime is 220220021001991. The next prime is 220220021002031. The reversal of 220220021002000 is 200120022022.

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

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 15 ways as a sum of consecutive naturals, for example, 260502196 + ... + 261346195.

Almost surely, 2^{220220021002000} is an apocalyptic number.

220220021002000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220220021002000 is an abundant number, since it is smaller than the sum of its proper divisors (314795649624944).

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

220220021002000 is a wasteful number, since it uses less digits than its factorization.

220220021002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521848625 (or 521848609 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 220220021002000 its reverse (200120022022), we get a palindrome (220420141024022).

The spelling of 220220021002000 in words is "two hundred twenty trillion, two hundred twenty billion, twenty-one million, two thousand".