1012203303220 has 24 divisors (see below), whose sum is σ = 2198924418600. Its totient is φ = 390919896192.

The previous prime is 1012203303217. The next prime is 1012203303253. The reversal of 1012203303220 is 223033022101.

It can be written as a sum of positive squares in 4 ways, for example, as 119265241104 + 892938062116 = 345348^2 + 944954^2 .

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, 872588475 + ... + 872589634.

It is an arithmetic number, because the mean of its divisors is an integer number (91621850775).

Almost surely, 2^{1012203303220} is an apocalyptic number.

1012203303220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012203303220 is an abundant number, since it is smaller than the sum of its proper divisors (1186721115380).

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

1012203303220 is a wasteful number, since it uses less digits than its factorization.

1012203303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745178147 (or 1745178145 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1012203303220 its reverse (223033022101), we get a palindrome (1235236325321).

The spelling of 1012203303220 in words is "one trillion, twelve billion, two hundred three million, three hundred three thousand, two hundred twenty".