1020220221012 has 24 divisors (see below), whose sum is σ = 2388119333376. Its totient is φ = 338986909248.

The previous prime is 1020220220963. The next prime is 1020220221029. The reversal of 1020220221012 is 2101220220201.

It is a junction number, because it is equal to n+sod(n) for n = 1020220220982 and 1020220221000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135808308 + ... + 135815819.

It is an arithmetic number, because the mean of its divisors is an integer number (99504972224).

Almost surely, 2^{1020220221012} is an apocalyptic number.

1020220221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020220221012 is an abundant number, since it is smaller than the sum of its proper divisors (1367899112364).

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

1020220221012 is a wasteful number, since it uses less digits than its factorization.

1020220221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271624447 (or 271624445 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1020220221012 its reverse (2101220220201), we get a palindrome (3121440441213).

The spelling of 1020220221012 in words is "one trillion, twenty billion, two hundred twenty million, two hundred twenty-one thousand, twelve".