11212100121202 has 4 divisors (see below), whose sum is σ = 16818150181806. Its totient is φ = 5606050060600.

The previous prime is 11212100121191. The next prime is 11212100121203. The reversal of 11212100121202 is 20212100121211.

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., 11198399652801 + 13700468401 = 3346401^2 + 117049^2 .

It is a super-2 number, since 2×11212100121202² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212100121203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2803025030299 + ... + 2803025030302.

Almost surely, 2^{11212100121202} is an apocalyptic number.

11212100121202 is a deficient number, since it is larger than the sum of its proper divisors (5606050060604).

11212100121202 is an equidigital number, since it uses as much as digits as its factorization.

11212100121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606050060603.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11212100121202 its reverse (20212100121211), we get a palindrome (31424200242413).

Subtracting 11212100121202 from its reverse (20212100121211), we obtain a palindrome (9000000000009).

The spelling of 11212100121202 in words is "eleven trillion, two hundred twelve billion, one hundred million, one hundred twenty-one thousand, two hundred two".