1211022201110 has 16 divisors (see below), whose sum is σ = 2179900004400. Its totient is φ = 484395537696.

The previous prime is 1211022201097. The next prime is 1211022201113. The reversal of 1211022201110 is 111022201121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211022201113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1282400 + ... + 2016579.

It is an arithmetic number, because the mean of its divisors is an integer number (136243750275).

Almost surely, 2^{1211022201110} is an apocalyptic number.

1211022201110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211022201110 is a deficient number, since it is larger than the sum of its proper divisors (968877803290).

1211022201110 is a wasteful number, since it uses less digits than its factorization.

1211022201110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335695.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1211022201110 its reverse (111022201121), we get a palindrome (1322044402231).

The spelling of 1211022201110 in words is "one trillion, two hundred eleven billion, twenty-two million, two hundred one thousand, one hundred ten".