1200111102010 has 16 divisors (see below), whose sum is σ = 2160219285000. Its totient is φ = 480040151616.

The previous prime is 1200111102007. The next prime is 1200111102013. The reversal of 1200111102010 is 102011110021.

It is an interprime number because it is at equal distance from previous prime (1200111102007) and next prime (1200111102013).

It can be written as a sum of positive squares in 4 ways, for example, as 911324164689 + 288786937321 = 954633^2 + 537389^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1200111102013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796816 + ... + 1742164.

Almost surely, 2^{1200111102010} is an apocalyptic number.

1200111102010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200111102010 is a deficient number, since it is larger than the sum of its proper divisors (960108182990).

1200111102010 is a wasteful number, since it uses less digits than its factorization.

1200111102010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072305.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1200111102010 its reverse (102011110021), we get a palindrome (1302122212031).

The spelling of 1200111102010 in words is "one trillion, two hundred billion, one hundred eleven million, one hundred two thousand, ten".