21122021001201 has 8 divisors (see below), whose sum is σ = 28170065187264. Its totient is φ = 14077662074640.

The previous prime is 21122021001199. The next prime is 21122021001223. The reversal of 21122021001201 is 10210012022112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21122021001201 - 2¹ = 21122021001199 is a prime.

It is a super-2 number, since 2×21122021001201² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21122021001001) 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, 921301501 + ... + 921324426.

It is an arithmetic number, because the mean of its divisors is an integer number (3521258148408).

Almost surely, 2^{21122021001201} is an apocalyptic number.

It is an amenable number.

21122021001201 is a deficient number, since it is larger than the sum of its proper divisors (7048044186063).

21122021001201 is a wasteful number, since it uses less digits than its factorization.

21122021001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842629751.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21122021001201 its reverse (10210012022112), we get a palindrome (31332033023313).

The spelling of 21122021001201 in words is "twenty-one trillion, one hundred twenty-two billion, twenty-one million, one thousand, two hundred one".