3221211104220 has 192 divisors, whose sum is σ = 9426745552896. Its totient is φ = 820895938560.

The previous prime is 3221211104129. The next prime is 3221211104263. The reversal of 3221211104220 is 224011121223.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 561477192 + ... + 561482928.

It is an arithmetic number, because the mean of its divisors is an integer number (49097633088).

Almost surely, 2^{3221211104220} is an apocalyptic number.

3221211104220 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 3221211104220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4713372776448).

3221211104220 is an abundant number, since it is smaller than the sum of its proper divisors (6205534448676).

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

3221211104220 is a wasteful number, since it uses less digits than its factorization.

3221211104220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9500 (or 9498 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 3221211104220 its reverse (224011121223), we get a palindrome (3445222225443).

The spelling of 3221211104220 in words is "three trillion, two hundred twenty-one billion, two hundred eleven million, one hundred four thousand, two hundred twenty".