1012220000200 has 96 divisors (see below), whose sum is σ = 2409273821160. Its totient is φ = 395387136000.

The previous prime is 1012220000189. The next prime is 1012220000213. The reversal of 1012220000200 is 20000222101.

It can be written as a sum of positive squares in 12 ways, for example, as 114884390916 + 897335609284 = 338946^2 + 947278^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1131382 + ... + 1817818.

Almost surely, 2^{1012220000200} is an apocalyptic number.

1012220000200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012220000200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204636910580).

1012220000200 is an abundant number, since it is smaller than the sum of its proper divisors (1397053820960).

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

1012220000200 is a wasteful number, since it uses less digits than its factorization.

1012220000200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686627 (or 686618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1012220000200 its reverse (20000222101), we get a palindrome (1032220222301).

The spelling of 1012220000200 in words is "one trillion, twelve billion, two hundred twenty million, two hundred", and thus it is an aban number.