21422211101 has 8 divisors (see below), whose sum is σ = 21554818464. Its totient is φ = 21290013360.

The previous prime is 21422210989. The next prime is 21422211113. The reversal of 21422211101 is 10111222412.

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 21422211101 - 2¹⁸ = 21421948957 is a prime.

It is a super-2 number, since 2×21422211101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21422211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21422211301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2846 + ... + 207008.

It is an arithmetic number, because the mean of its divisors is an integer number (2694352308).

Almost surely, 2^21422211101 is an apocalyptic number.

It is an amenable number.

21422211101 is a deficient number, since it is larger than the sum of its proper divisors (132607363).

21422211101 is a wasteful number, since it uses less digits than its factorization.

21422211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204811.

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

Adding to 21422211101 its reverse (10111222412), we get a palindrome (31533433513).

The spelling of 21422211101 in words is "twenty-one billion, four hundred twenty-two million, two hundred eleven thousand, one hundred one".