3021210113220 has 384 divisors, whose sum is σ = 10221915432960. Its totient is φ = 736392384000.

The previous prime is 3021210113213. The next prime is 3021210113221. The reversal of 3021210113220 is 223110121203.

3021210113220 is a `hidden beast` number, since 30 + 212 + 101 + 1 + 322 + 0 = 666.

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 = 3021210113193 and 3021210113202.

It is not an unprimeable number, because it can be changed into a prime (3021210113221) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 451530075 + ... + 451536765.

It is an arithmetic number, because the mean of its divisors is an integer number (26619571440).

Almost surely, 2^{3021210113220} is an apocalyptic number.

3021210113220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3021210113220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5110957716480).

3021210113220 is an abundant number, since it is smaller than the sum of its proper divisors (7200705319740).

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

3021210113220 is a wasteful number, since it uses less digits than its factorization.

3021210113220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7344 (or 7336 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 3021210113220 its reverse (223110121203), we get a palindrome (3244320234423).

The spelling of 3021210113220 in words is "three trillion, twenty-one billion, two hundred ten million, one hundred thirteen thousand, two hundred twenty".