22001120222121 has 32 divisors (see below), whose sum is σ = 33127463335680. Its totient is φ = 14429279374848.

The previous prime is 22001120222113. The next prime is 22001120222129. The reversal of 22001120222121 is 12122202110022.

It is a happy number.

22001120222121 is a `hidden beast` number, since 2 + 200 + 1 + 120 + 222 + 121 = 666.

It is an interprime number because it is at equal distance from previous prime (22001120222113) and next prime (22001120222129).

It is not a de Polignac number, because 22001120222121 - 2³ = 22001120222113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22001120222094 and 22001120222103.

It is not an unprimeable number, because it can be changed into a prime (22001120222129) 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 31 ways as a sum of consecutive naturals, for example, 24714066 + ... + 25588811.

It is an arithmetic number, because the mean of its divisors is an integer number (1035233229240).

Almost surely, 2^{22001120222121} is an apocalyptic number.

It is an amenable number.

22001120222121 is a deficient number, since it is larger than the sum of its proper divisors (11126343113559).

22001120222121 is a wasteful number, since it uses less digits than its factorization.

22001120222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50303150 (or 50303144 counting only the distinct ones).

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

Adding to 22001120222121 its reverse (12122202110022), we get a palindrome (34123322332143).

The spelling of 22001120222121 in words is "twenty-two trillion, one billion, one hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".