1200012220210 has 64 divisors (see below), whose sum is σ = 2322812700000. Its totient is φ = 444765110272.

The previous prime is 1200012220181. The next prime is 1200012220223. The reversal of 1200012220210 is 120222100021.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 10841599129 + 1189170621081 = 104123^2 + 1090491^2 .

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, 2652666 + ... + 3071914.

Almost surely, 2^{1200012220210} is an apocalyptic number.

1200012220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200012220210 is a deficient number, since it is larger than the sum of its proper divisors (1122800479790).

1200012220210 is a wasteful number, since it uses less digits than its factorization.

1200012220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419535.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1200012220210 its reverse (120222100021), we get a palindrome (1320234320231).

The spelling of 1200012220210 in words is "one trillion, two hundred billion, twelve million, two hundred twenty thousand, two hundred ten".