1121021021110 has 64 divisors (see below), whose sum is σ = 2061121593600. Its totient is φ = 438861151872.

The previous prime is 1121021021101. The next prime is 1121021021143. The reversal of 1121021021110 is 111201201211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145149709 + ... + 145157431.

It is an arithmetic number, because the mean of its divisors is an integer number (32205024900).

Almost surely, 2^{1121021021110} is an apocalyptic number.

1121021021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121021021110 is a deficient number, since it is larger than the sum of its proper divisors (940100572490).

1121021021110 is a wasteful number, since it uses less digits than its factorization.

1121021021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8845.

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

Adding to 1121021021110 its reverse (111201201211), we get a palindrome (1232222222321).

The spelling of 1121021021110 in words is "one trillion, one hundred twenty-one billion, twenty-one million, twenty-one thousand, one hundred ten".