1001220020212 has 6 divisors (see below), whose sum is σ = 1752135035378. Its totient is φ = 500610010104.

The previous prime is 1001220020201. The next prime is 1001220020243. The reversal of 1001220020212 is 2120200221001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1001208364816 + 11655396 = 1000604^2 + 3414^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1001220020192 and 1001220020201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125152502523 + ... + 125152502530.

Almost surely, 2^{1001220020212} is an apocalyptic number.

It is an amenable number.

1001220020212 is a deficient number, since it is larger than the sum of its proper divisors (750915015166).

1001220020212 is a wasteful number, since it uses less digits than its factorization.

1001220020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250305005057 (or 250305005055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1001220020212 its reverse (2120200221001), we get a palindrome (3121420241213).

The spelling of 1001220020212 in words is "one trillion, one billion, two hundred twenty million, twenty thousand, two hundred twelve".