11012210220021 has 16 divisors (see below), whose sum is σ = 14771243096064. Its totient is φ = 7297327640624.

The previous prime is 11012210219921. The next prime is 11012210220079. The reversal of 11012210220021 is 12002201221011.

It is a cyclic number.

It is not a de Polignac number, because 11012210220021 - 2¹⁷ = 11012210088949 is a prime.

It is a super-2 number, since 2×11012210220021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012210222021) 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, 21157120 + ... + 21671366.

It is an arithmetic number, because the mean of its divisors is an integer number (923202693504).

Almost surely, 2^{11012210220021} is an apocalyptic number.

It is an amenable number.

11012210220021 is a deficient number, since it is larger than the sum of its proper divisors (3759032876043).

11012210220021 is a wasteful number, since it uses less digits than its factorization.

11012210220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557160.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11012210220021 its reverse (12002201221011), we get a palindrome (23014411441032).

The spelling of 11012210220021 in words is "eleven trillion, twelve billion, two hundred ten million, two hundred twenty thousand, twenty-one".