2112121212202 has 8 divisors (see below), whose sum is σ = 3277429467300. Its totient is φ = 1019644723104.

The previous prime is 2112121212191. The next prime is 2112121212203. The reversal of 2112121212202 is 2022121212112.

It can be written as a sum of positive squares in 2 ways, for example, as 2109759155001 + 2362057201 = 1452501^2 + 48601^2 .

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

It is a super-2 number, since 2×2112121212202² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112121212202.

It is not an unprimeable number, because it can be changed into a prime (2112121212203) 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, 18207941427 + ... + 18207941542.

Almost surely, 2^{2112121212202} is an apocalyptic number.

2112121212202 is a deficient number, since it is larger than the sum of its proper divisors (1165308255098).

2112121212202 is a wasteful number, since it uses less digits than its factorization.

2112121212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36415883000.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2112121212202 its reverse (2022121212112), we get a palindrome (4134242424314).

The spelling of 2112121212202 in words is "two trillion, one hundred twelve billion, one hundred twenty-one million, two hundred twelve thousand, two hundred two".