22101102221 has 8 divisors (see below), whose sum is σ = 24111864864. Its totient is φ = 20090601520.

The previous prime is 22101102169. The next prime is 22101102223. The reversal of 22101102221 is 12220110122.

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

It is not a de Polignac number, because 22101102221 - 2¹⁴ = 22101085837 is a prime.

It is a super-2 number, since 2×22101102221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101102196 and 22101102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101102223) 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, 138611 + ... + 251823.

It is an arithmetic number, because the mean of its divisors is an integer number (3013983108).

Almost surely, 2^22101102221 is an apocalyptic number.

It is an amenable number.

22101102221 is a deficient number, since it is larger than the sum of its proper divisors (2010762643).

22101102221 is a wasteful number, since it uses less digits than its factorization.

22101102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130971.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22101102221 its reverse (12220110122), we get a palindrome (34321212343).

The spelling of 22101102221 in words is "twenty-two billion, one hundred one million, one hundred two thousand, two hundred twenty-one".