1022221210220 has 24 divisors (see below), whose sum is σ = 2453330904864. Its totient is φ = 350475843456.

The previous prime is 1022221210217. The next prime is 1022221210237. The reversal of 1022221210220 is 220121222201.

It is a happy number.

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, 3650789897 + ... + 3650790176.

It is an arithmetic number, because the mean of its divisors is an integer number (102222121036).

Almost surely, 2^{1022221210220} is an apocalyptic number.

1022221210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022221210220 is an abundant number, since it is smaller than the sum of its proper divisors (1431109694644).

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

1022221210220 is a wasteful number, since it uses less digits than its factorization.

1022221210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7301580089 (or 7301580087 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1022221210220 its reverse (220121222201), we get a palindrome (1242342432421).

The spelling of 1022221210220 in words is "one trillion, twenty-two billion, two hundred twenty-one million, two hundred ten thousand, two hundred twenty".