1101220012 has 24 divisors (see below), whose sum is σ = 2031349040. Its totient is φ = 520914240.

The previous prime is 1101219991. The next prime is 1101220019. The reversal of 1101220012 is 2100221011.

It is not an unprimeable number, because it can be changed into a prime (1101220019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47962 + ... + 67102.

Almost surely, 2^1101220012 is an apocalyptic number.

It is an amenable number.

1101220012 is a deficient number, since it is larger than the sum of its proper divisors (930129028).

1101220012 is a wasteful number, since it uses less digits than its factorization.

1101220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19921 (or 19919 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1101220012 is about 33184.6351795526. The cubic root of 1101220012 is about 1032.6616090370.

Adding to 1101220012 its reverse (2100221011), we get a palindrome (3201441023).

Subtracting 1101220012 from its reverse (2100221011), we obtain a palindrome (999000999).

The spelling of 1101220012 in words is "one billion, one hundred one million, two hundred twenty thousand, twelve".