1201122110 has 16 divisors (see below), whose sum is σ = 2162569536. Its totient is φ = 480326688.

The previous prime is 1201122089. The next prime is 1201122211. The reversal of 1201122110 is 112211021.

It is a junction number, because it is equal to n+sod(n) for n = 1201122091 and 1201122100.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 33419 + ... + 59321.

It is an arithmetic number, because the mean of its divisors is an integer number (135160596).

Almost surely, 2^1201122110 is an apocalyptic number.

1201122110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201122110 is a deficient number, since it is larger than the sum of its proper divisors (961447426).

1201122110 is a wasteful number, since it uses less digits than its factorization.

1201122110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30547.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1201122110 is about 34657.2086296632. The cubic root of 1201122110 is about 1062.9896937176.

Adding to 1201122110 its reverse (112211021), we get a palindrome (1313333131).

The spelling of 1201122110 in words is "one billion, two hundred one million, one hundred twenty-two thousand, one hundred ten".