22201222112121 has 8 divisors (see below), whose sum is σ = 31878677904640. Its totient is φ = 13662290530512.

The previous prime is 22201222112089. The next prime is 22201222112129. The reversal of 22201222112121 is 12121122210222.

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

It is not a de Polignac number, because 22201222112121 - 2⁵ = 22201222112089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22201222112129) 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, 284631052681 + ... + 284631052758.

It is an arithmetic number, because the mean of its divisors is an integer number (3984834738080).

Almost surely, 2^{22201222112121} is an apocalyptic number.

It is an amenable number.

22201222112121 is a deficient number, since it is larger than the sum of its proper divisors (9677455792519).

22201222112121 is a wasteful number, since it uses less digits than its factorization.

22201222112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569262105455.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22201222112121 its reverse (12121122210222), we get a palindrome (34322344322343).

The spelling of 22201222112121 in words is "twenty-two trillion, two hundred one billion, two hundred twenty-two million, one hundred twelve thousand, one hundred twenty-one".