22201012011221 has 8 divisors (see below), whose sum is σ = 23513427921024. Its totient is φ = 20889315437760.

The previous prime is 22201012011179. The next prime is 22201012011223. The reversal of 22201012011221 is 12211021010222.

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 22201012011221 - 2¹⁰ = 22201012010197 is a prime.

It is a super-2 number, since 2×22201012011221² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 22201012011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201012011223) 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, 179770535 + ... + 179893988.

It is an arithmetic number, because the mean of its divisors is an integer number (2939178490128).

Almost surely, 2^{22201012011221} is an apocalyptic number.

It is an amenable number.

22201012011221 is a deficient number, since it is larger than the sum of its proper divisors (1312415909803).

22201012011221 is a wasteful number, since it uses less digits than its factorization.

22201012011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359668171.

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

Adding to 22201012011221 its reverse (12211021010222), we get a palindrome (34412033021443).

The spelling of 22201012011221 in words is "twenty-two trillion, two hundred one billion, twelve million, eleven thousand, two hundred twenty-one".