1100121212 has 12 divisors (see below), whose sum is σ = 1961537256. Its totient is φ = 539682000.

The previous prime is 1100121193. The next prime is 1100121229. The reversal of 1100121212 is 2121210011.

1100121212 is a modest number, since divided by 121212 gives 1100 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1100121193 and 1100121202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2594414 + ... + 2594837.

It is an arithmetic number, because the mean of its divisors is an integer number (163461438).

Almost surely, 2^1100121212 is an apocalyptic number.

It is an amenable number.

1100121212 is a deficient number, since it is larger than the sum of its proper divisors (861416044).

1100121212 is a wasteful number, since it uses less digits than its factorization.

1100121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189308 (or 5189306 counting only the distinct ones).

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

The square root of 1100121212 is about 33168.0751928718. The cubic root of 1100121212 is about 1032.3180306508.

Adding to 1100121212 its reverse (2121210011), we get a palindrome (3221331223).

The spelling of 1100121212 in words is "one billion, one hundred million, one hundred twenty-one thousand, two hundred twelve".