1200101200220 has 24 divisors (see below), whose sum is σ = 2714075022624. Its totient is φ = 443114289216.

The previous prime is 1200101200217. The next prime is 1200101200229. The reversal of 1200101200220 is 220021010021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200101200229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307886664 + ... + 2307887183.

It is an arithmetic number, because the mean of its divisors is an integer number (113086459276).

Almost surely, 2^{1200101200220} is an apocalyptic number.

1200101200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200101200220 is an abundant number, since it is smaller than the sum of its proper divisors (1513973822404).

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

1200101200220 is a wasteful number, since it uses less digits than its factorization.

1200101200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615773869 (or 4615773867 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1200101200220 its reverse (220021010021), we get a palindrome (1420122210241).

The spelling of 1200101200220 in words is "one trillion, two hundred billion, one hundred one million, two hundred thousand, two hundred twenty".