11212110122 has 4 divisors (see below), whose sum is σ = 16818165186. Its totient is φ = 5606055060.

The previous prime is 11212110103. The next prime is 11212110139. The reversal of 11212110122 is 22101121211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7930080601 + 3282029521 = 89051^2 + 57289^2 .

It is a super-2 number, since 2×11212110122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212110097 and 11212110106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2803027529 + ... + 2803027532.

Almost surely, 2^11212110122 is an apocalyptic number.

11212110122 is a deficient number, since it is larger than the sum of its proper divisors (5606055064).

11212110122 is an equidigital number, since it uses as much as digits as its factorization.

11212110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606055063.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11212110122 its reverse (22101121211), we get a palindrome (33313231333).

The spelling of 11212110122 in words is "eleven billion, two hundred twelve million, one hundred ten thousand, one hundred twenty-two".