11010212212121 has 8 divisors (see below), whose sum is σ = 11149528690944. Its totient is φ = 10871422450560.

The previous prime is 11010212212039. The next prime is 11010212212133. The reversal of 11010212212121 is 12121221201011.

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

It is a cyclic number.

It is not a de Polignac number, because 11010212212121 - 2¹⁴ = 11010212195737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11010212212121.

It is not an unprimeable number, because it can be changed into a prime (11010212212151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131637245 + ... + 131720858.

It is an arithmetic number, because the mean of its divisors is an integer number (1393691086368).

Almost surely, 2^{11010212212121} is an apocalyptic number.

It is an amenable number.

11010212212121 is a deficient number, since it is larger than the sum of its proper divisors (139316478823).

11010212212121 is an equidigital number, since it uses as much as digits as its factorization.

11010212212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263358631.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11010212212121 its reverse (12121221201011), we get a palindrome (23131433413132).

The spelling of 11010212212121 in words is "eleven trillion, ten billion, two hundred twelve million, two hundred twelve thousand, one hundred twenty-one".