1200210021210 has 64 divisors (see below), whose sum is σ = 2944307625984. Its totient is φ = 312978369600.

The previous prime is 1200210021203. The next prime is 1200210021239. The reversal of 1200210021210 is 121200120021.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1287655 + ... + 2014565.

It is an arithmetic number, because the mean of its divisors is an integer number (46004806656).

Almost surely, 2^{1200210021210} is an apocalyptic number.

1200210021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200210021210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1472153812992).

1200210021210 is an abundant number, since it is smaller than the sum of its proper divisors (1744097604774).

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

1200210021210 is a wasteful number, since it uses less digits than its factorization.

1200210021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728139.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1200210021210 its reverse (121200120021), we get a palindrome (1321410141231).

The spelling of 1200210021210 in words is "one trillion, two hundred billion, two hundred ten million, twenty-one thousand, two hundred ten".