22110212221001 has 8 divisors (see below), whose sum is σ = 22950696935880. Its totient is φ = 21274931746432.

The previous prime is 22110212220991. The next prime is 22110212221049. The reversal of 22110212221001 is 10012221201122.

It can be written as a sum of positive squares in 4 ways, for example, as 12938696761600 + 9171515459401 = 3597040^2 + 3028451^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22110212221001 - 2¹⁴ = 22110212204617 is a prime.

It is a super-2 number, since 2×22110212221001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22110212220001) 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, 1301051420 + ... + 1301068413.

It is an arithmetic number, because the mean of its divisors is an integer number (2868837116985).

Almost surely, 2^{22110212221001} is an apocalyptic number.

It is an amenable number.

22110212221001 is a deficient number, since it is larger than the sum of its proper divisors (840484714879).

22110212221001 is a wasteful number, since it uses less digits than its factorization.

22110212221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602120155.

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

Adding to 22110212221001 its reverse (10012221201122), we get a palindrome (32122433422123).

The spelling of 22110212221001 in words is "twenty-two trillion, one hundred ten billion, two hundred twelve million, two hundred twenty-one thousand, one".