22202221012201 has 4 divisors (see below), whose sum is σ = 22202842454100. Its totient is φ = 22201599570304.

The previous prime is 22202221012109. The next prime is 22202221012211. The reversal of 22202221012201 is 10221012220222.

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 11835141170176 + 10367079842025 = 3440224^2 + 3219795^2 .

It is a cyclic number.

It is not a de Polignac number, because 22202221012201 - 2¹¹ = 22202221010153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22202221012211) 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, 310667356 + ... + 310738813.

It is an arithmetic number, because the mean of its divisors is an integer number (5550710613525).

Almost surely, 2^{22202221012201} is an apocalyptic number.

It is an amenable number.

22202221012201 is a deficient number, since it is larger than the sum of its proper divisors (621441899).

22202221012201 is an equidigital number, since it uses as much as digits as its factorization.

22202221012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621441898.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22202221012201 its reverse (10221012220222), we get a palindrome (32423233232423).

The spelling of 22202221012201 in words is "twenty-two trillion, two hundred two billion, two hundred twenty-one million, twelve thousand, two hundred one".