22101211021 has 8 divisors (see below), whose sum is σ = 22850329088. Its totient is φ = 21354354000.

The previous prime is 22101211019. The next prime is 22101211061. The reversal of 22101211021 is 12011210122.

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 22101211021 - 2¹ = 22101211019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101210992 and 22101211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101211061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545370 + ... + 584491.

It is an arithmetic number, because the mean of its divisors is an integer number (2856291136).

Almost surely, 2^22101211021 is an apocalyptic number.

It is an amenable number.

22101211021 is a deficient number, since it is larger than the sum of its proper divisors (749118067).

22101211021 is a wasteful number, since it uses less digits than its factorization.

22101211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130523.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22101211021 its reverse (12011210122), we get a palindrome (34112421143).

The spelling of 22101211021 in words is "twenty-two billion, one hundred one million, two hundred eleven thousand, twenty-one".