1000200220992 has 126 divisors (see below), whose sum is σ = 3334957654938. Its totient is φ = 285771483648.

The previous prime is 1000200220927. The next prime is 1000200220993. The reversal of 1000200220992 is 2990220020001.

It can be written as a sum of positive squares in only one way, i.e., 835864033536 + 164336187456 = 914256^2 + 405384^2 .

It is a tau number, because it is divible by the number of its divisors (126).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000200220993) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17690743 + ... + 17747190.

Almost surely, 2^{1000200220992} is an apocalyptic number.

1000200220992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000200220992 is an abundant number, since it is smaller than the sum of its proper divisors (2334757433946).

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

1000200220992 is a wasteful number, since it uses less digits than its factorization.

1000200220992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35437965 (or 35437945 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

Adding to 1000200220992 its reverse (2990220020001), we get a palindrome (3990420240993).

The spelling of 1000200220992 in words is "one trillion, two hundred million, two hundred twenty thousand, nine hundred ninety-two".