11220663661021 has 8 divisors (see below), whose sum is σ = 11585567161088. Its totient is φ = 10855944324000.

The previous prime is 11220663661019. The next prime is 11220663661043. The reversal of 11220663661021 is 12016636602211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11220663661021 - 2¹ = 11220663661019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220663661321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45916920 + ... + 46160641.

It is an arithmetic number, because the mean of its divisors is an integer number (1448195895136).

Almost surely, 2^{11220663661021} is an apocalyptic number.

It is an amenable number.

11220663661021 is a deficient number, since it is larger than the sum of its proper divisors (364903500067).

11220663661021 is an equidigital number, since it uses as much as digits as its factorization.

11220663661021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92081523.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 11220663661021 in words is "eleven trillion, two hundred twenty billion, six hundred sixty-three million, six hundred sixty-one thousand, twenty-one".