3221202020220 has 72 divisors (see below), whose sum is σ = 10035060008064. Its totient is φ = 835771333248.

The previous prime is 3221202020219. The next prime is 3221202020251. The reversal of 3221202020220 is 220202021223.

3221202020220 is a `hidden beast` number, since 3 + 221 + 20 + 202 + 0 + 220 = 666.

It is a super-2 number, since 2×3221202020220² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3221202020193 and 3221202020202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241825324 + ... + 241838643.

Almost surely, 2^{3221202020220} is an apocalyptic number.

3221202020220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3221202020220 is an abundant number, since it is smaller than the sum of its proper divisors (6813857987844).

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

3221202020220 is a wasteful number, since it uses less digits than its factorization.

3221202020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483664019 (or 483664014 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 3221202020220 its reverse (220202021223), we get a palindrome (3441404041443).

The spelling of 3221202020220 in words is "three trillion, two hundred twenty-one billion, two hundred two million, twenty thousand, two hundred twenty".