11212112202122 has 8 divisors (see below), whose sum is σ = 18111873557316. Its totient is φ = 5174821016352.

The previous prime is 11212112202121. The next prime is 11212112202167. The reversal of 11212112202122 is 22120221121211.

It can be written as a sum of positive squares in 2 ways, for example, as 10894759119841 + 317353082281 = 3300721^2 + 563341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11212112202122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212112202094 and 11212112202103.

It is not an unprimeable number, because it can be changed into a prime (11212112202121) 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, 215617542323 + ... + 215617542374.

Almost surely, 2^{11212112202122} is an apocalyptic number.

11212112202122 is a deficient number, since it is larger than the sum of its proper divisors (6899761355194).

11212112202122 is a wasteful number, since it uses less digits than its factorization.

11212112202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431235084712.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11212112202122 its reverse (22120221121211), we get a palindrome (33332333323333).

The spelling of 11212112202122 in words is "eleven trillion, two hundred twelve billion, one hundred twelve million, two hundred two thousand, one hundred twenty-two".