11112220012 has 6 divisors (see below), whose sum is σ = 19446385028. Its totient is φ = 5556110004.

The previous prime is 11112219973. The next prime is 11112220019. The reversal of 11112220012 is 21002221111.

It is a junction number, because it is equal to n+sod(n) for n = 11112219974 and 11112220001.

It is not an unprimeable number, because it can be changed into a prime (11112220019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389027498 + ... + 1389027505.

Almost surely, 2^11112220012 is an apocalyptic number.

It is an amenable number.

11112220012 is a deficient number, since it is larger than the sum of its proper divisors (8334165016).

11112220012 is a wasteful number, since it uses less digits than its factorization.

11112220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778055007 (or 2778055005 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11112220012 its reverse (21002221111), we get a palindrome (32114441123).

The spelling of 11112220012 in words is "eleven billion, one hundred twelve million, two hundred twenty thousand, twelve".