1200102121010 has 32 divisors (see below), whose sum is σ = 2333929574592. Its totient is φ = 441671244480.

The previous prime is 1200102120991. The next prime is 1200102121019. The reversal of 1200102121010 is 101212010021.

It is a junction number, because it is equal to n+sod(n) for n = 1200102120982 and 1200102121000.

It is not an unprimeable number, because it can be changed into a prime (1200102121019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14995196 + ... + 15075015.

It is an arithmetic number, because the mean of its divisors is an integer number (72935299206).

Almost surely, 2^{1200102121010} is an apocalyptic number.

1200102121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200102121010 is a deficient number, since it is larger than the sum of its proper divisors (1133827453582).

1200102121010 is a wasteful number, since it uses less digits than its factorization.

1200102121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30070538.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200102121010 its reverse (101212010021), we get a palindrome (1301314131031).

The spelling of 1200102121010 in words is "one trillion, two hundred billion, one hundred two million, one hundred twenty-one thousand, ten".