20021200222000 has 80 divisors (see below), whose sum is σ = 48910347787392. Its totient is φ = 7925918361600.

The previous prime is 20021200221977. The next prime is 20021200222003. The reversal of 20021200222000 is 22200212002.

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

It is not an unprimeable number, because it can be changed into a prime (20021200222003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51407032 + ... + 51795031.

Almost surely, 2^{20021200222000} is an apocalyptic number.

20021200222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20021200222000 is an abundant number, since it is smaller than the sum of its proper divisors (28889147565392).

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

20021200222000 is a wasteful number, since it uses less digits than its factorization.

20021200222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103202183 (or 103202167 counting only the distinct ones).

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

Adding to 20021200222000 its reverse (22200212002), we get a palindrome (20043400434002).

The spelling of 20021200222000 in words is "twenty trillion, twenty-one billion, two hundred million, two hundred twenty-two thousand".