1200122121010 has 32 divisors (see below), whose sum is σ = 2165445176832. Its totient is φ = 478888482240.

The previous prime is 1200122121001. The next prime is 1200122121031. The reversal of 1200122121010 is 101212210021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11926327 + ... + 12026533.

It is an arithmetic number, because the mean of its divisors is an integer number (67670161776).

Almost surely, 2^{1200122121010} is an apocalyptic number.

1200122121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200122121010 is a deficient number, since it is larger than the sum of its proper divisors (965323055822).

1200122121010 is a wasteful number, since it uses less digits than its factorization.

1200122121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103098.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1200122121010 its reverse (101212210021), we get a palindrome (1301334331031).

The spelling of 1200122121010 in words is "one trillion, two hundred billion, one hundred twenty-two million, one hundred twenty-one thousand, ten".