22000120021001 has 8 divisors (see below), whose sum is σ = 22302249668424. Its totient is φ = 21698010864000.

The previous prime is 22000120020973. The next prime is 22000120021007. The reversal of 22000120021001 is 10012002100022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3099363771001 + 18900756250000 = 1760501^2 + 4347500^2 .

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 22000120021001 - 2⁶ = 22000120020937 is a prime.

It is a super-4 number, since 4×22000120021001⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000120021007) 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, 2954246 + ... + 7261391.

It is an arithmetic number, because the mean of its divisors is an integer number (2787781208553).

Almost surely, 2^{22000120021001} is an apocalyptic number.

It is an amenable number.

22000120021001 is a deficient number, since it is larger than the sum of its proper divisors (302129647423).

22000120021001 is a wasteful number, since it uses less digits than its factorization.

22000120021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10245211.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22000120021001 its reverse (10012002100022), we get a palindrome (32012122121023).

The spelling of 22000120021001 in words is "twenty-two trillion, one hundred twenty million, twenty-one thousand, one".