1101311212 has 24 divisors (see below), whose sum is σ = 2033846640. Its totient is φ = 520358400.

The previous prime is 1101311207. The next prime is 1101311249. The reversal of 1101311212 is 2121131011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1101311192 and 1101311201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12408 + ... + 48544.

It is an arithmetic number, because the mean of its divisors is an integer number (84743610).

Almost surely, 2^1101311212 is an apocalyptic number.

It is an amenable number.

1101311212 is a deficient number, since it is larger than the sum of its proper divisors (932535428).

1101311212 is a wasteful number, since it uses less digits than its factorization.

1101311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36561 (or 36559 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1101311212 is about 33186.0092810208. The cubic root of 1101311212 is about 1032.6901156442.

Adding to 1101311212 its reverse (2121131011), we get a palindrome (3222442223).

The spelling of 1101311212 in words is "one billion, one hundred one million, three hundred eleven thousand, two hundred twelve".