3122221010220 has 144 divisors (see below), whose sum is σ = 10416261098880. Its totient is φ = 752194626048.

The previous prime is 3122221010201. The next prime is 3122221010221. The reversal of 3122221010220 is 220101222213.

3122221010220 is a `hidden beast` number, since 3 + 1 + 222 + 210 + 10 + 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 = 3122221010193 and 3122221010202.

It is not an unprimeable number, because it can be changed into a prime (3122221010221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14084515 + ... + 14304474.

It is an arithmetic number, because the mean of its divisors is an integer number (72335146520).

Almost surely, 2^{3122221010220} is an apocalyptic number.

3122221010220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3122221010220 is an abundant number, since it is smaller than the sum of its proper divisors (7294040088660).

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

3122221010220 is a wasteful number, since it uses less digits than its factorization.

3122221010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28389064 (or 28389059 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 3122221010220 its reverse (220101222213), we get a palindrome (3342322232433).

The spelling of 3122221010220 in words is "three trillion, one hundred twenty-two billion, two hundred twenty-one million, ten thousand, two hundred twenty".