22011210120221 has 16 divisors (see below), whose sum is σ = 25740928802688. Its totient is φ = 18427814798400.

The previous prime is 22011210120161. The next prime is 22011210120233. The reversal of 22011210120221 is 12202101211022.

It is not a de Polignac number, because 22011210120221 - 2¹⁴ = 22011210103837 is a prime.

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 22011210120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011210120281) 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 15 ways as a sum of consecutive naturals, for example, 38648951 + ... + 39214331.

It is an arithmetic number, because the mean of its divisors is an integer number (1608808050168).

Almost surely, 2^{22011210120221} is an apocalyptic number.

It is an amenable number.

22011210120221 is a deficient number, since it is larger than the sum of its proper divisors (3729718682467).

22011210120221 is a wasteful number, since it uses less digits than its factorization.

22011210120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694772.

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

Adding to 22011210120221 its reverse (12202101211022), we get a palindrome (34213311331243).

The spelling of 22011210120221 in words is "twenty-two trillion, eleven billion, two hundred ten million, one hundred twenty thousand, two hundred twenty-one".