11021200222021 has 16 divisors (see below), whose sum is σ = 12745876419648. Its totient is φ = 9418417926400.

The previous prime is 11021200221991. The next prime is 11021200222049. The reversal of 11021200222021 is 12022200212011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11021200222021 - 2²¹ = 11021198124869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021200221986 and 11021200222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021200222061) 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 15 ways as a sum of consecutive naturals, for example, 35739835 + ... + 36046888.

It is an arithmetic number, because the mean of its divisors is an integer number (796617276228).

Almost surely, 2^{11021200222021} is an apocalyptic number.

11021200222021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11021200222021 is a deficient number, since it is larger than the sum of its proper divisors (1724676197627).

11021200222021 is a wasteful number, since it uses less digits than its factorization.

11021200222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71787572.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11021200222021 its reverse (12022200212011), we get a palindrome (23043400434032).

The spelling of 11021200222021 in words is "eleven trillion, twenty-one billion, two hundred million, two hundred twenty-two thousand, twenty-one".