11012212122021 has 16 divisors (see below), whose sum is σ = 17797514541120. Its totient is φ = 6674067952560.

The previous prime is 11012212121969. The next prime is 11012212122113. The reversal of 11012212122021 is 12022121221011.

It is not a de Polignac number, because 11012212122021 - 2¹⁰ = 11012212120997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11012212121985 and 11012212122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012212123021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18539077350 + ... + 18539077943.

It is an arithmetic number, because the mean of its divisors is an integer number (1112344658820).

Almost surely, 2^{11012212122021} is an apocalyptic number.

11012212122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11012212122021 is a deficient number, since it is larger than the sum of its proper divisors (6785302419099).

11012212122021 is a wasteful number, since it uses less digits than its factorization.

11012212122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37078155313 (or 37078155307 counting only the distinct ones).

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

Adding to 11012212122021 its reverse (12022121221011), we get a palindrome (23034333343032).

The spelling of 11012212122021 in words is "eleven trillion, twelve billion, two hundred twelve million, one hundred twenty-two thousand, twenty-one".