22022225536121 has 4 divisors (see below), whose sum is σ = 22022989774452. Its totient is φ = 22021461297792.

The previous prime is 22022225536109. The next prime is 22022225536151. The reversal of 22022225536121 is 12163552222022.

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 8945243539600 + 13076981996521 = 2990860^2 + 3616211^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022225536121 - 2¹⁴ = 22022225519737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22022225536151) 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, 382075940 + ... + 382133573.

It is an arithmetic number, because the mean of its divisors is an integer number (5505747443613).

Almost surely, 2^{22022225536121} is an apocalyptic number.

It is an amenable number.

22022225536121 is a deficient number, since it is larger than the sum of its proper divisors (764238331).

22022225536121 is an equidigital number, since it uses as much as digits as its factorization.

22022225536121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764238330.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 22022225536121 its reverse (12163552222022), we get a palindrome (34185777758143).

The spelling of 22022225536121 in words is "twenty-two trillion, twenty-two billion, two hundred twenty-five million, five hundred thirty-six thousand, one hundred twenty-one".