1200222010000 has 100 divisors (see below), whose sum is σ = 3129385348012. Its totient is φ = 443158848000.

The previous prime is 1200222009989. The next prime is 1200222010037. The reversal of 1200222010000 is 102220021.

It can be written as a sum of positive squares in 10 ways, for example, as 1200093958144 + 128051856 = 1095488^2 + 11316^2 .

It is a tau number, because it is divible by the number of its divisors (100).

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 19 ways as a sum of consecutive naturals, for example, 4486239 + ... + 4746238.

Almost surely, 2^{1200222010000} is an apocalyptic number.

1200222010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200222010000 is an abundant number, since it is smaller than the sum of its proper divisors (1929163338012).

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

1200222010000 is an equidigital number, since it uses as much as digits as its factorization.

1200222010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9232518 (or 9232497 counting only the distinct ones).

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

Adding to 1200222010000 its reverse (102220021), we get a palindrome (1200324230021).

The spelling of 1200222010000 in words is "one trillion, two hundred billion, two hundred twenty-two million, ten thousand".