20221000000220 has 24 divisors (see below), whose sum is σ = 42464376016944. Its totient is φ = 8088347425536.

The previous prime is 20221000000207. The next prime is 20221000000283. The reversal of 20221000000220 is 2200000012202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54557 + ... + 6359636.

It is an arithmetic number, because the mean of its divisors is an integer number (1769349000706).

Almost surely, 2^{20221000000220} is an apocalyptic number.

20221000000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221000000220 is an abundant number, since it is smaller than the sum of its proper divisors (22243376016724).

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

20221000000220 is a wasteful number, since it uses less digits than its factorization.

20221000000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6571829 (or 6571827 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20221000000220 its reverse (2200000012202), we get a palindrome (22421000012422).

The spelling of 20221000000220 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty", and thus it is an aban number.