1101221101010 has 32 divisors (see below), whose sum is σ = 1995702235200. Its totient is φ = 437493497920.

The previous prime is 1101221101009. The next prime is 1101221101051. The reversal of 1101221101010 is 101011221011.

It is a junction number, because it is equal to n+sod(n) for n = 1101221100982 and 1101221101000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1094921 + ... + 1844259.

It is an arithmetic number, because the mean of its divisors is an integer number (62365694850).

Almost surely, 2^{1101221101010} is an apocalyptic number.

1101221101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1101221101010 is a deficient number, since it is larger than the sum of its proper divisors (894481134190).

1101221101010 is a wasteful number, since it uses less digits than its factorization.

1101221101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750346.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1101221101010 its reverse (101011221011), we get a palindrome (1202232322021).

The spelling of 1101221101010 in words is "one trillion, one hundred one billion, two hundred twenty-one million, one hundred one thousand, ten".