1200221220210 has 16 divisors (see below), whose sum is σ = 2880530928576. Its totient is φ = 320058992048.

The previous prime is 1200221220059. The next prime is 1200221220227. The reversal of 1200221220210 is 120221220021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1200221220210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20003686974 + ... + 20003687033.

It is an arithmetic number, because the mean of its divisors is an integer number (180033183036).

Almost surely, 2^{1200221220210} is an apocalyptic number.

1200221220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200221220210 is an abundant number, since it is smaller than the sum of its proper divisors (1680309708366).

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

1200221220210 is a wasteful number, since it uses less digits than its factorization.

1200221220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40007374017.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1200221220210 its reverse (120221220021), we get a palindrome (1320442440231).

The spelling of 1200221220210 in words is "one trillion, two hundred billion, two hundred twenty-one million, two hundred twenty thousand, two hundred ten".