1201221200010 has 64 divisors (see below), whose sum is σ = 3211753265280. Its totient is φ = 285489173760.

The previous prime is 1201221199991. The next prime is 1201221200017. The reversal of 1201221200010 is 100021221021.

It is not an unprimeable number, because it can be changed into a prime (1201221200017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53093076 + ... + 53115695.

It is an arithmetic number, because the mean of its divisors is an integer number (50183644770).

Almost surely, 2^{1201221200010} is an apocalyptic number.

1201221200010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201221200010 is an abundant number, since it is smaller than the sum of its proper divisors (2010532065270).

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

1201221200010 is a wasteful number, since it uses less digits than its factorization.

1201221200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106208823.

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

Adding to 1201221200010 its reverse (100021221021), we get a palindrome (1301242421031).

The spelling of 1201221200010 in words is "one trillion, two hundred one billion, two hundred twenty-one million, two hundred thousand, ten".