22001201201121 has 4 divisors (see below), whose sum is σ = 29334934934832. Its totient is φ = 14667467467412.

The previous prime is 22001201201047. The next prime is 22001201201129. The reversal of 22001201201121 is 12110210210022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22001201201121 - 2⁹ = 22001201200609 is a prime.

It is a super-3 number, since 3×22001201201121³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22001201201121.

It is not an unprimeable number, because it can be changed into a prime (22001201201129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666866866851 + ... + 3666866866856.

It is an arithmetic number, because the mean of its divisors is an integer number (7333733733708).

Almost surely, 2^{22001201201121} is an apocalyptic number.

It is an amenable number.

22001201201121 is a deficient number, since it is larger than the sum of its proper divisors (7333733733711).

22001201201121 is an equidigital number, since it uses as much as digits as its factorization.

22001201201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7333733733710.

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

Adding to 22001201201121 its reverse (12110210210022), we get a palindrome (34111411411143).

The spelling of 22001201201121 in words is "twenty-two trillion, one billion, two hundred one million, two hundred one thousand, one hundred twenty-one".