22201101021211 has 4 divisors (see below), whose sum is σ = 25372686881392. Its totient is φ = 19029515161032.

The previous prime is 22201101021157. The next prime is 22201101021277. The reversal of 22201101021211 is 11212010110222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22201101021211 - 2⁹ = 22201101020699 is a prime.

It is a super-2 number, since 2×22201101021211² (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 (22201101024211) 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, 1585792930080 + ... + 1585792930093.

It is an arithmetic number, because the mean of its divisors is an integer number (6343171720348).

Almost surely, 2^{22201101021211} is an apocalyptic number.

22201101021211 is a deficient number, since it is larger than the sum of its proper divisors (3171585860181).

22201101021211 is an equidigital number, since it uses as much as digits as its factorization.

22201101021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171585860180.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22201101021211 its reverse (11212010110222), we get a palindrome (33413111131433).

The spelling of 22201101021211 in words is "twenty-two trillion, two hundred one billion, one hundred one million, twenty-one thousand, two hundred eleven".