11012122222021 has 16 divisors (see below), whose sum is σ = 11718057404160. Its totient is φ = 10312673978880.

The previous prime is 11012122222001. The next prime is 11012122222037. The reversal of 11012122222021 is 12022222121011.

It is a cyclic number.

It is not a de Polignac number, because 11012122222021 - 2³⁷ = 10874683268549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11012122222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012122222001) 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, 14174100 + ... + 14930818.

It is an arithmetic number, because the mean of its divisors is an integer number (732378587760).

Almost surely, 2^{11012122222021} is an apocalyptic number.

It is an amenable number.

11012122222021 is a deficient number, since it is larger than the sum of its proper divisors (705935182139).

11012122222021 is a wasteful number, since it uses less digits than its factorization.

11012122222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761004.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11012122222021 its reverse (12022222121011), we get a palindrome (23034344343032).

It can be divided in two parts, 1101212 and 2222021, that added together give a palindrome (3323233).

The spelling of 11012122222021 in words is "eleven trillion, twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, twenty-one".