11001212212 has 12 divisors (see below), whose sum is σ = 19336193380. Its totient is φ = 5476585536.

The previous prime is 11001212177. The next prime is 11001212219. The reversal of 11001212212 is 21221210011.

It can be written as a sum of positive squares in 2 ways, for example, as 9587151396 + 1414060816 = 97914^2 + 37604^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11001212192 and 11001212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001212219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6004113 + ... + 6005944.

Almost surely, 2^11001212212 is an apocalyptic number.

It is an amenable number.

11001212212 is a deficient number, since it is larger than the sum of its proper divisors (8334981168).

11001212212 is a wasteful number, since it uses less digits than its factorization.

11001212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12010290 (or 12010288 counting only the distinct ones).

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

Adding to 11001212212 its reverse (21221210011), we get a palindrome (32222422223).

The spelling of 11001212212 in words is "eleven billion, one million, two hundred twelve thousand, two hundred twelve".