22120101001221 has 8 divisors (see below), whose sum is σ = 29493505578720. Its totient is φ = 14746715212272.

The previous prime is 22120101001177. The next prime is 22120101001241. The reversal of 22120101001221 is 12210010102122.

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

It is not a de Polignac number, because 22120101001221 - 2¹⁴ = 22120100984837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22120101001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120101001241) 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 7 ways as a sum of consecutive naturals, for example, 1671670 + ... + 6858183.

It is an arithmetic number, because the mean of its divisors is an integer number (3686688197340).

Almost surely, 2^{22120101001221} is an apocalyptic number.

It is an amenable number.

22120101001221 is a deficient number, since it is larger than the sum of its proper divisors (7373404577499).

22120101001221 is an equidigital number, since it uses as much as digits as its factorization.

22120101001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9394275.

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

Adding to 22120101001221 its reverse (12210010102122), we get a palindrome (34330111103343).

The spelling of 22120101001221 in words is "twenty-two trillion, one hundred twenty billion, one hundred one million, one thousand, two hundred twenty-one".