1220020302220 has 48 divisors (see below), whose sum is σ = 2645017014528. Its totient is φ = 472207380480.

The previous prime is 1220020302211. The next prime is 1220020302229. The reversal of 1220020302220 is 222030200221.

It is an interprime number because it is at equal distance from previous prime (1220020302211) and next prime (1220020302229).

It is a junction number, because it is equal to n+sod(n) for n = 1220020302194 and 1220020302203.

It is not an unprimeable number, because it can be changed into a prime (1220020302229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5061072 + ... + 5296648.

It is an arithmetic number, because the mean of its divisors is an integer number (55104521136).

Almost surely, 2^{1220020302220} is an apocalyptic number.

1220020302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220020302220 is an abundant number, since it is smaller than the sum of its proper divisors (1424996712308).

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

1220020302220 is a wasteful number, since it uses less digits than its factorization.

1220020302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243970 (or 243968 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 1220020302220 its reverse (222030200221), we get a palindrome (1442050502441).

The spelling of 1220020302220 in words is "one trillion, two hundred twenty billion, twenty million, three hundred two thousand, two hundred twenty".