22101012100221 has 8 divisors (see below), whose sum is σ = 29468079910080. Its totient is φ = 14733976178592.

The previous prime is 22101012100183. The next prime is 22101012100243. The reversal of 22101012100221 is 12200121010122.

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

It is not a de Polignac number, because 22101012100221 - 2⁷ = 22101012100093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22101012100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101012100291) 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, 6305080 + ... + 9162753.

It is an arithmetic number, because the mean of its divisors is an integer number (3683509988760).

Almost surely, 2^{22101012100221} is an apocalyptic number.

It is an amenable number.

22101012100221 is a deficient number, since it is larger than the sum of its proper divisors (7367067809859).

22101012100221 is a wasteful number, since it uses less digits than its factorization.

22101012100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15944115.

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

Adding to 22101012100221 its reverse (12200121010122), we get a palindrome (34301133110343).

The spelling of 22101012100221 in words is "twenty-two trillion, one hundred one billion, twelve million, one hundred thousand, two hundred twenty-one".