3031211102220 has 192 divisors, whose sum is σ = 10817413017600. Its totient is φ = 690291383040.

The previous prime is 3031211102201. The next prime is 3031211102273. The reversal of 3031211102220 is 222011121303.

3031211102220 is a `hidden beast` number, since 30 + 312 + 1 + 1 + 102 + 220 = 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 = 3031211102193 and 3031211102202.

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, 455155 + ... + 2503914.

It is an arithmetic number, because the mean of its divisors is an integer number (56340692800).

Almost surely, 2^{3031211102220} is an apocalyptic number.

3031211102220 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 3031211102220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5408706508800).

3031211102220 is an abundant number, since it is smaller than the sum of its proper divisors (7786201915380).

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

3031211102220 is a wasteful number, since it uses less digits than its factorization.

3031211102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959365 (or 2959357 counting only the distinct ones).

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

Adding to 3031211102220 its reverse (222011121303), we get a palindrome (3253222223523).

The spelling of 3031211102220 in words is "three trillion, thirty-one billion, two hundred eleven million, one hundred two thousand, two hundred twenty".