2220221212020 has 240 divisors, whose sum is σ = 8122353254400. Its totient is φ = 507479007168.

The previous prime is 2220221212003. The next prime is 2220221212043. The reversal of 2220221212020 is 202121220222.

2220221212020 is a `hidden beast` number, since 2 + 220 + 221 + 21 + 202 + 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 = 2220221211984 and 2220221212002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1442164 + ... + 2553483.

It is an arithmetic number, because the mean of its divisors is an integer number (33843138560).

Almost surely, 2^{2220221212020} is an apocalyptic number.

2220221212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220221212020 is an abundant number, since it is smaller than the sum of its proper divisors (5902132042380).

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

2220221212020 is a wasteful number, since it uses less digits than its factorization.

2220221212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995689 (or 3995664 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2220221212020 its reverse (202121220222), we get a palindrome (2422342432242).

The spelling of 2220221212020 in words is "two trillion, two hundred twenty billion, two hundred twenty-one million, two hundred twelve thousand, twenty".