22012002022201 has 4 divisors (see below), whose sum is σ = 22606920995812. Its totient is φ = 21417083048592.

The previous prime is 22012002022193. The next prime is 22012002022207. The reversal of 22012002022201 is 10222020021022.

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 20608867010601 + 1403135011600 = 4539699^2 + 1184540^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012002022201 - 2³ = 22012002022193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012002022207) 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, 297459486750 + ... + 297459486823.

It is an arithmetic number, because the mean of its divisors is an integer number (5651730248953).

Almost surely, 2^{22012002022201} is an apocalyptic number.

It is an amenable number.

22012002022201 is a deficient number, since it is larger than the sum of its proper divisors (594918973611).

22012002022201 is an equidigital number, since it uses as much as digits as its factorization.

22012002022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594918973610.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22012002022201 its reverse (10222020021022), we get a palindrome (32234022043223).

The spelling of 22012002022201 in words is "twenty-two trillion, twelve billion, two million, twenty-two thousand, two hundred one".