11122021212212 has 24 divisors (see below), whose sum is σ = 19878346567296. Its totient is φ = 5442501855488.

The previous prime is 11122021212143. The next prime is 11122021212217. The reversal of 11122021212212 is 21221212022111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122021212217) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4466123 + ... + 6495405.

It is an arithmetic number, because the mean of its divisors is an integer number (828264440304).

Almost surely, 2^{11122021212212} is an apocalyptic number.

It is an amenable number.

11122021212212 is a deficient number, since it is larger than the sum of its proper divisors (8756325355084).

11122021212212 is a wasteful number, since it uses less digits than its factorization.

11122021212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058487 (or 2058485 counting only the distinct ones).

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

Adding to 11122021212212 its reverse (21221212022111), we get a palindrome (32343233234323).

The spelling of 11122021212212 in words is "eleven trillion, one hundred twenty-two billion, twenty-one million, two hundred twelve thousand, two hundred twelve".