20022221221101 has 24 divisors (see below), whose sum is σ = 32021064794784. Its totient is φ = 11953564904160.

The previous prime is 20022221221069. The next prime is 20022221221139. The reversal of 20022221221101 is 10112212222002.

It is a happy number.

20022221221101 is a `hidden beast` number, since 20 + 0 + 222 + 212 + 211 + 0 + 1 = 666.

It is not a de Polignac number, because 20022221221101 - 2⁵ = 20022221221069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022221221141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1509281866 + ... + 1509295131.

It is an arithmetic number, because the mean of its divisors is an integer number (1334211033116).

Almost surely, 2^{20022221221101} is an apocalyptic number.

It is an amenable number.

20022221221101 is a deficient number, since it is larger than the sum of its proper divisors (11998843573683).

20022221221101 is a wasteful number, since it uses less digits than its factorization.

20022221221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3018577081 (or 3018577078 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20022221221101 its reverse (10112212222002), we get a palindrome (30134433443103).

The spelling of 20022221221101 in words is "twenty trillion, twenty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred one".