1020000011212 has 96 divisors (see below), whose sum is σ = 2239038426240. Its totient is φ = 395854387200.

The previous prime is 1020000011183. The next prime is 1020000011221. The reversal of 1020000011212 is 2121100000201.

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 in 31 ways as a sum of consecutive naturals, for example, 3880008 + ... + 4134544.

It is an arithmetic number, because the mean of its divisors is an integer number (23323316940).

Almost surely, 2^{1020000011212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020000011212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1119519213120).

1020000011212 is an abundant number, since it is smaller than the sum of its proper divisors (1219038415028).

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

1020000011212 is a wasteful number, since it uses less digits than its factorization.

1020000011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254771 (or 254769 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1020000011212 its reverse (2121100000201), we get a palindrome (3141100011413).

The spelling of 1020000011212 in words is "one trillion, twenty billion, eleven thousand, two hundred twelve".