22021010210221 has 8 divisors (see below), whose sum is σ = 24024618252000. Its totient is φ = 20017685172240.

The previous prime is 22021010210137. The next prime is 22021010210279. The reversal of 22021010210221 is 12201201012022.

It is a happy number.

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 22021010210221 - 2¹⁹ = 22021009685933 is a prime.

It is a super-2 number, since 2×22021010210221² (a number of 27 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 = 22021010210195 and 22021010210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021010210291) 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, 70588231 + ... + 70899508.

It is an arithmetic number, because the mean of its divisors is an integer number (3003077281500).

Almost surely, 2^{22021010210221} is an apocalyptic number.

It is an amenable number.

22021010210221 is a deficient number, since it is larger than the sum of its proper divisors (2003608041779).

22021010210221 is a wasteful number, since it uses less digits than its factorization.

22021010210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141501899.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22021010210221 its reverse (12201201012022), we get a palindrome (34222211222243).

The spelling of 22021010210221 in words is "twenty-two trillion, twenty-one billion, ten million, two hundred ten thousand, two hundred twenty-one".