3321020023220 has 24 divisors (see below), whose sum is σ = 6974571830184. Its totient is φ = 1328326146176.

The previous prime is 3321020023213. The next prime is 3321020023247. The reversal of 3321020023220 is 223200201233.

It can be written as a sum of positive squares in 4 ways, for example, as 224975667856 + 3096044355364 = 474316^2 + 1759558^2 .

It is a super-2 number, since 2×3321020023220² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3321020023192 and 3321020023201.

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, 4783259 + ... + 5433378.

It is an arithmetic number, because the mean of its divisors is an integer number (290607159591).

Almost surely, 2^{3321020023220} is an apocalyptic number.

It is an amenable number.

3321020023220 is an abundant number, since it is smaller than the sum of its proper divisors (3653551806964).

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

3321020023220 is a wasteful number, since it uses less digits than its factorization.

3321020023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10232899 (or 10232897 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 3321020023220 its reverse (223200201233), we get a palindrome (3544220224453).

The spelling of 3321020023220 in words is "three trillion, three hundred twenty-one billion, twenty million, twenty-three thousand, two hundred twenty".