20033011012221 has 8 divisors (see below), whose sum is σ = 29678534832960. Its totient is φ = 13355340674796.

The previous prime is 20033011012199. The next prime is 20033011012241. The reversal of 20033011012221 is 12221011033002.

20033011012221 is a `hidden beast` number, since 2 + 0 + 0 + 330 + 110 + 1 + 2 + 221 = 666.

It is not a de Polignac number, because 20033011012221 - 2¹³ = 20033011004029 is a prime.

It is a super-2 number, since 2×20033011012221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20033011012194 and 20033011012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20033011012241) 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 7 ways as a sum of consecutive naturals, for example, 370981685385 + ... + 370981685438.

It is an arithmetic number, because the mean of its divisors is an integer number (3709816854120).

Almost surely, 2^{20033011012221} is an apocalyptic number.

It is an amenable number.

20033011012221 is a deficient number, since it is larger than the sum of its proper divisors (9645523820739).

20033011012221 is an equidigital number, since it uses as much as digits as its factorization.

20033011012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741963370832 (or 741963370826 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20033011012221 its reverse (12221011033002), we get a palindrome (32254022045223).

The spelling of 20033011012221 in words is "twenty trillion, thirty-three billion, eleven million, twelve thousand, two hundred twenty-one".