1220202222020 has 24 divisors (see below), whose sum is σ = 2697289123200. Its totient is φ = 462392420832.

The previous prime is 1220202222011. The next prime is 1220202222061. The reversal of 1220202222020 is 202222020221.

It is a super-3 number, since 3×1220202222020³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220202222020.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1605528860 + ... + 1605529619.

It is an arithmetic number, because the mean of its divisors is an integer number (112387046800).

Almost surely, 2^{1220202222020} is an apocalyptic number.

1220202222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220202222020 is an abundant number, since it is smaller than the sum of its proper divisors (1477086901180).

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

1220202222020 is a wasteful number, since it uses less digits than its factorization.

1220202222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211058507 (or 3211058505 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 1220202222020 its reverse (202222020221), we get a palindrome (1422424242241).

The spelling of 1220202222020 in words is "one trillion, two hundred twenty billion, two hundred two million, two hundred twenty-two thousand, twenty".