1100212122 has 32 divisors (see below), whose sum is σ = 2263645440. Its totient is φ = 356276480.

The previous prime is 1100212097. The next prime is 1100212129. The reversal of 1100212122 is 2212120011.

It is a junction number, because it is equal to n+sod(n) for n = 1100212098 and 1100212107.

It is not an unprimeable number, because it can be changed into a prime (1100212129) 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, 49438 + ... + 68150.

It is an arithmetic number, because the mean of its divisors is an integer number (70738920).

Almost surely, 2^1100212122 is an apocalyptic number.

1100212122 is an abundant number, since it is smaller than the sum of its proper divisors (1163433318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100212122 is a wasteful number, since it uses less digits than its factorization.

1100212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18998.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1100212122 is about 33169.4456088732. The cubic root of 1100212122 is about 1032.3464655318.

Adding to 1100212122 its reverse (2212120011), we get a palindrome (3312332133).

The spelling of 1100212122 in words is "one billion, one hundred million, two hundred twelve thousand, one hundred twenty-two".