22121021102201 has 12 divisors (see below), whose sum is σ = 25982447617152. Its totient is φ = 18776789058888.

The previous prime is 22121021102183. The next prime is 22121021102227. The reversal of 22121021102201 is 10220112012122.

It is not a de Polignac number, because 22121021102201 - 2¹⁴ = 22121021085817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22121021102201.

It is not an unprimeable number, because it can be changed into a prime (22121021102801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2191496945 + ... + 2191507038.

It is an arithmetic number, because the mean of its divisors is an integer number (2165203968096).

Almost surely, 2^{22121021102201} is an apocalyptic number.

It is an amenable number.

22121021102201 is a deficient number, since it is larger than the sum of its proper divisors (3861426514951).

22121021102201 is a wasteful number, since it uses less digits than its factorization.

22121021102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383004100 (or 4383004093 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22121021102201 its reverse (10220112012122), we get a palindrome (32341133114323).

The spelling of 22121021102201 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-one million, one hundred two thousand, two hundred one".