22221202112201 has 4 divisors (see below), whose sum is σ = 22441214014404. Its totient is φ = 22001190210000.

The previous prime is 22221202112177. The next prime is 22221202112209. The reversal of 22221202112201 is 10221120212222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16303635026176 + 5917567086025 = 4037776^2 + 2432605^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221202112201 - 2¹⁴ = 22221202095817 is a prime.

It is a super-2 number, since 2×22221202112201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22221202112209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110005950950 + ... + 110005951151.

It is an arithmetic number, because the mean of its divisors is an integer number (5610303503601).

Almost surely, 2^{22221202112201} is an apocalyptic number.

It is an amenable number.

22221202112201 is a deficient number, since it is larger than the sum of its proper divisors (220011902203).

22221202112201 is a wasteful number, since it uses less digits than its factorization.

22221202112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220011902202.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22221202112201 its reverse (10221120212222), we get a palindrome (32442322324423).

The spelling of 22221202112201 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred two million, one hundred twelve thousand, two hundred one".