11066221646021 has 4 divisors (see below), whose sum is σ = 11173660691232. Its totient is φ = 10958782600812.

The previous prime is 11066221646003. The next prime is 11066221646023. The reversal of 11066221646021 is 12064612266011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11066221646021 - 2¹⁴ = 11066221629637 is a prime.

It is a super-2 number, since 2×11066221646021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11066221646023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53719522451 + ... + 53719522656.

It is an arithmetic number, because the mean of its divisors is an integer number (2793415172808).

Almost surely, 2^{11066221646021} is an apocalyptic number.

It is an amenable number.

11066221646021 is a deficient number, since it is larger than the sum of its proper divisors (107439045211).

11066221646021 is a wasteful number, since it uses less digits than its factorization.

11066221646021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107439045210.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 11066221646021 in words is "eleven trillion, sixty-six billion, two hundred twenty-one million, six hundred forty-six thousand, twenty-one".