11021210122212 has 18 divisors (see below), whose sum is σ = 27859170031238. Its totient is φ = 3673736707392.

The previous prime is 11021210122183. The next prime is 11021210122291. The reversal of 11021210122212 is 21222101212011.

11021210122212 is a `hidden beast` number, since 110 + 212 + 10 + 122 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8563664787876 + 2457545334336 = 2926374^2 + 1567656^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153072362773 + ... + 153072362844.

Almost surely, 2^{11021210122212} is an apocalyptic number.

11021210122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11021210122212 is an abundant number, since it is smaller than the sum of its proper divisors (16837959909026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11021210122212 is a wasteful number, since it uses less digits than its factorization.

11021210122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306144725627 (or 306144725622 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11021210122212 its reverse (21222101212011), we get a palindrome (32243311334223).

The spelling of 11021210122212 in words is "eleven trillion, twenty-one billion, two hundred ten million, one hundred twenty-two thousand, two hundred twelve".