20021022220001 has 16 divisors (see below), whose sum is σ = 23525313757440. Its totient is φ = 16841985970320.

The previous prime is 20021022219971. The next prime is 20021022220097. The reversal of 20021022220001 is 10002222012002.

It is a cyclic number.

It is not a de Polignac number, because 20021022220001 - 2¹⁴ = 20021022203617 is a prime.

It is a super-5 number, since 5×20021022220001⁵ (a number of 68 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (20021022220201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1113878975 + ... + 1113896948.

It is an arithmetic number, because the mean of its divisors is an integer number (1470332109840).

Almost surely, 2^{20021022220001} is an apocalyptic number.

It is an amenable number.

20021022220001 is a deficient number, since it is larger than the sum of its proper divisors (3504291537439).

20021022220001 is a wasteful number, since it uses less digits than its factorization.

20021022220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227775996.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20021022220001 its reverse (10002222012002), we get a palindrome (30023244232003).

The spelling of 20021022220001 in words is "twenty trillion, twenty-one billion, twenty-two million, two hundred twenty thousand, one".