1121201211010 has 32 divisors (see below), whose sum is σ = 2023813935792. Its totient is φ = 447224828160.

The previous prime is 1121201211001. The next prime is 1121201211019. The reversal of 1121201211010 is 101121021211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1121201211001) and next prime (1121201211019).

It can be written as a sum of positive squares in 8 ways, for example, as 1044874440481 + 76326770529 = 1022191^2 + 276273^2 .

It is not an unprimeable number, because it can be changed into a prime (1121201211019) 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, 50049132 + ... + 50071528.

Almost surely, 2^{1121201211010} is an apocalyptic number.

1121201211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121201211010 is a deficient number, since it is larger than the sum of its proper divisors (902612724782).

1121201211010 is a wasteful number, since it uses less digits than its factorization.

1121201211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36198.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1121201211010 its reverse (101121021211), we get a palindrome (1222322232221).

The spelling of 1121201211010 in words is "one trillion, one hundred twenty-one billion, two hundred one million, two hundred eleven thousand, ten".